Application program interface for message routing and management system

[00002] This application claims the benefits of U.S. Provisional Application Ser. No. 60/189,145, filed on Mar. 14, 2000.

[00003] The present invention relates to communication services, and in particular to delivery of messages to selected recipients through one or more specified communication modes.

[00004] Thanks to improvements in technology and widespread consumer interest, once-exotic forms of communication have become commonplace, and today the average consumer has access to a broad array of communications services. The Internet and wireless telephony, once the preserve of an elite few, now routinely supplement traditional telephone services and are frequently supplied by the same carriers. Even inexpensive home computers now include facsimile capability. Businesses employing mobile employees can furnish them with economical pagers that incorporate advanced features, such as text transmission and Internet access.

[00005] The sheer proliferation of communication options, while greatly improving access and convenience, has engendered problems as well. The existence of a communication channel does not ensure that the recipient of a message will be “listening” to that particular channel at a given time, yet the sender of a message has no way to know this. Indeed, more channels of communication traffic mean more demands on the attentions of potential recipients, who, feeling besieged by the assault of e-mail, voice mail, pages, etc., may simply inactivate some communication devices at different times. Message senders, therefore, are faced with the choice of risking non-delivery of their messages, or painstakingly re-transmitting a message on every possible mode of communication modality.

[00006] It may also be difficult to transmit the same message to multiple recipients. While a single e-mail message, sent once, can reach an unlimited number of destinations, phone messages must be repeated for each call. Moreover, different recipients may have access to different types of communication channels; perhaps some recipients can be reached efficiently only by e-mail, others by fax, and still others by page.

[00007] The integration of communication input devices also raises the prospect of messages having multiple forms of content. Today, a single message may include input from a variety of sources (e.g., voice and text); transmitting such a message by traditional means may be quite cumbersome, involving multiple separate transmissions that must be coordinated or difficult “packaging” of the different inputs into a single message.

[00008] U.S. Ser. No. 09/496,170, filed on Feb. 1, 2000 and entitled Multi-Mode Message Routing and Management (the entire disclosure of which is hereby incorporated by reference) addresses these difficulties and discloses, inter alia, a facility for transmission of messages composed on one or more input devices to a single or multiple recipients by means of one or plural communication modalities. Such communication modalities may include, for example, conventional or wireless telephone, facsimile transmission, pager, e-mail, postal mail or courier. Thus, a message may be directed to a single recipient via multiple modalities, such as e-mail and fax, in order to ensure the earliest possible receipt of the message; or may be directed to multiple recipients by a single modality or by different modalities (e.g., some recipients receive the message by e-mail, others by fax, others by phone). The facility may be configured to respond to defined “escalation” rules that specify conditions under which different delivery modalities may be sequentially employed. For example, the rules may specify that if there is no response to an e-mailed question within an hour, the recipient is to be telephoned. Moreover, in addition to alternative transmission modalities, the escalation rules may specify alternative recipients (as well as alternative modalities for those recipients). The escalation rules may also specify default contact methods, which may apply to specific individuals or to lists of recipients.

[00009] The invention disclosed in the '170 application may include functionality for determining whether a message has been received (e.g., telephone and e-mail polling), as well as automatic sender notification upon confirmation of receipt. Moreover, in addition to monitoring messages in order to confirm their receipt, the invention may facilitate recipients' responses. In this way, the invention can orchestrate multi-question surveys utilizing multiple communication modes; for example, individuals contacted directly can respond immediately, while others can respond later in accordance with instructions delivered to them—e.g., via a web site or by calling a toll-free number.

[00010] The invention disclosed in the '170 application supports messages having embedded questions that call for response by the recipient. Such responses, when received, may be communicated to the message sender and/or accumulated.

[00011] Also facilitated by the invention disclosed in the '170 is scheduling of message delivery, on a mode-by-mode basis where appropriate. Scheduling may include delivery at a particular time or within a designated time window, or may involve preventing delivery during specified “black-out” periods. In some embodiments, scheduling may be automatic and based on considerations such as the recipient's time zone and the form of communication (e.g., to avoid awakening the recipient by telephone).

[00012] However, the '170 application contemplates a system in which customers' client computers communicate via the World Wide Web (the “web”) with a server implementing the foregoing functions. In other words, the interaction is essentially manual and stepwise in nature, with customers selecting options and indicating preferences in an interactive session. This model is generally unsuited to business applications requiring more automated, high-volume access to messaging functions.

[00013] Brief Summary of the Invention

[00014] The present invention provides an application program interface (API) facilitating interaction, generally (although not necessarily) via the Internet, with a message-handling facility such as that disclosed in the '170 application. In accordance with the invention, application programmers utilize a markup language (preferably XML-derived) to configure applications for compatibility and communication with the message-handling facility. The API is capable of processing high-volume requests for message routing, status information, and various other functions on an automated basis, enabling businesses to make routine use of these functions.

[00015] Indeed, the range of business-to-business and business-to-consumer organizations that can benefit from flexible messaging services is virtually limitless. For example, an airline may obtain contact information from passengers when tickets are purchased. Should a flight be delayed or cancelled, the airline can generate a single notification for transmission to all passengers via the messaging facility; as the flight time approaches, efforts to reach passengers not yet contacted can be intensified according to defined escalation rules. Similarly, a club or other organization can send out notices of meetings, receive confirmations and preferences from members, and alert them to changes using the messaging facility by means of the API. The message need be written and transmitted by the organization only once; all remaining operations, from bulk re-transmission to collecting and organizing responses, are performed automatically.

[00016] In accordance with the invention, a message server comprising a plurality of modalities for transmitting messages is associated with an API. An application, typically implemented on a remote server, is configured to receive a message and a designation of one or more transmission modalities, and is further adapted for interaction with the API. The API comprises stored instructions supporting the interaction. Upon receiving the message and the designation from the application server, the API causes the message server to transmit the message according to the designation.

[00020] 1. Technical Context

[00021] The functions of the messaging system are implemented by a server 125, which may be realized as a single workstation or as a network of server computers, depending on the activity level and included functionality. For explanatory purposes, server 125 is represented as a single machine that includes a network interface 127 continuously connected to the Internet. Network interface 127 and the other internal components of server 125 intercommunicate over a main bidirectional bus 130 (which may be a physical bus in a single hardware device, or can instead represent a network such as a LAN or a WAN). The main sequence of instructions effectuating the functions of server 125 and facilitating interaction among customers, server 125, the Internet, and other modes of communication reside on a mass storage device (such as a hard disk or optical storage unit) 132 as well as in a main system memory 134 during operation. Execution of these instructions and effectuation of the functions of server 125 is accomplished by a central-processing unit (“CPU”) 136.

[00022] A group of functional modules that control the operation of CPU 136 and perform the operations of server 125 is shown conceptually as located in system memory 134; once again, however, it should be stressed that this organization is for explanatory purposes. The various modules and servers may indeed be implemented as active processes running on a single machine, but functionality may instead be distributed among multiple machines (or processors within a single machine), once again depending on the activity level and included capabilities.

[00023] An operating system 140 directs the execution of low-level, basic system functions such as memory allocation, file management, and operation of mass storage devices 132. At a higher level, a control block 142, implemented as a series of stored instructions, manages interaction among the various functional components of the server and ensures proper routing of data thereamong.

[00024] Although server 125 may be capable of communicating directly with customers by means of the web and electronic mail, as explained in the '170 application, the present application is concerned primarily with hardware-to-hardware communications. Accordingly, an API 145 receives and processes communications from external sources, and transmits proper responses to those sources, via network interface 127. API 145 represents a programmatic interface for direct connection to appropriately configured third-party applications. The pattern of interaction with the external source, including the content of transmissions thereto, is handled by a transaction server 150. Transaction server 150 has access to various databases, collectively indicated at 152; these databases, discussed in greater detail below, are ordinarily stored on devices 132 and accessed as necessary. Depending on the requests received by API 145, transaction server 150 causes messages to be assembled and transmitted to designated contacts, and retrieves and assembles information for transmission to outside inquiries. Credit-card validation and billing for services are handled by a billing server 160.

[00025] The various functions performed by server 125, which result in different patterns of interaction with customers, will now be described.

[00026] 1.1 Media Conversion and Basic Message Transmission

[00027] A series of media servers, collectively indicated at 175, represent the interface servers that format messages for transmission; these messages may be in the form of voice, text (for transmission by e-mail, web or postal mail), or other desired format. Messages and media designations are received from remote applications via API 145, and once transaction server 150 has received sufficient commands and content to fully specify a message (i.e., the message body, the recipient(s), desired delivery methods, and message options such as delivery scheduling and/or escalation rules), a message “job” is created and stored in a database 152. The job is passed to a job queue server 165, which is responsible for implementing and scheduling all message jobs.

[00028] At this point, the message remains in the format in which it was generated. As noted previously, however, server 125 is capable of receiving messages, via the interface servers, in one format and transmitting them in a different, customer-selected format. The functions of media conversion and message assembly are performed by a series of message delivery servers, collectively illustrated at 167, dedicated thereto. The appropriate message delivery server 167 converts messages to the specified format and causes their transmission, via the designated communication medium, by means of a corresponding device driver selected from among a suite of drivers. The drivers operate a series of transmission devices, which include network interface 127 for e-mail and/or web-based message delivery; a telephone interface 170 for message transmission by telephone, facsimile, pager, or handheld wireless device (although it should be noted that pager and wireless transmission can occur through network interface 127); and a document-generation module 172 for message transmission by postal mail or overnight courier.

[00029] The timing of message transmission is governed by job queue server 165. In response to the customer's authorization to send a message, job queue server 165 triggers the conversion and transmission operations just discussed. Job queue server 165 also contains (or, as shown for illustrative purposes, communicates with) a scheduling module 180, which can orchestrate transmission of messages at customer-specified times based on the computer's internal clock.

[00030] Server block 165 may contain a text-to-speech conversion module, enabling customer-provided text to be transmitted by voice to the recipient by means of telephone interface 170. Conversely, telephony server 175 may be configured to respond to spoken customer commands, allowing the customer to compose and address a message by telephone (i.e., by communicating with server 125 by means of telephone interface 170).

[00031] In still more complex operational modes, server 125 may facilitate catenation of message—either as separate segments of the same format, or as segments encoded in different formats. In the case of audio messages, for example, a message delivery server 167 may append an audio “header” (typically a so-called “professional prompt”) and a “trailer” to the customer's message. Thus, when the recipient answers the telephone, the header portion of the message may tell him that he is about to receive a message from the customer, and the trailer portion may facilitate response (as explained in further detail below).

[00032] 1.2 Confirming Message Receipt

[00033] Any of a variety of techniques can be used to assess whether and when a message is received. Many e-mail systems natively support receipt confirmation. Alternatively, a URL can be embedded in the message; when the recipient receives the e-mail and clicks on this URL, receipt is automatically recorded. Moreover, the URL-specified web page may contain questions inviting response by the recipient, who thereupon transmits the web page back to server 125.

[00034] Hard-copy deliveries can be tracked through the courier or by means of a follow-up telephone call to the recipient, while for telephone messages, the recipient can be asked to press a number to confirm receipt. In the context of telephone messages, it may be useful to detect whether a person or an answering machine has answered the phone. This determination can be used, for example, to select a proper audio header or even to choose between alternative messages, which may differ depending whether the message is delivered to the recipient or a recording device; an answering machine, obviously, would not be asked to press a number to confirm receipt, nor would delivery typically be confirmed to the sender if the message was left on an answering machine. To implement answer detection, telephony server 147 is programmed to monitor the level of noise on the line once a connection is established, distinguishing between a “silence” noise level and a “speech” level. If an individual answers, he or she will typically issue a short greeting; that is, the signal pattern of a human answer is a short speech signal followed by silence. An answering machine, by contrast, will generally issue a long greeting (“Hello, you have reached the Smiths . . . ”). Based on the observed lengths of a sustained speech signal and an ensuing silence, telephony server 147 forms an initial guess as to whether a person or a machine has answered. If a person is guessed, telephony server 147 will play the audio header that prompts the answerer to press a touch-tone key, and if the proper touch-tone pulse is not detected, server 147 may revise its guess and assume that it is communicating with an answering machine.

[00035] 1.3 Message Scheduling

[00036] It may not be appropriate to transmit messages by certain modes during particular time periods at the recipient's location. These “blackout” time periods may be established automatically by server 125, or may be designated by the customer or the recipient. Via API 145, an external application may indicate blackout time periods for a particular message, or may permanently designate such periods for particular contacts (and particular communication modalities). Most commonly, permanently designated blackout periods are used to prevent messages from being sent by telephone or pager during times when the recipient is generally likely to be asleep or away from the communication modality. Message-specific blackout periods may be utilized by message senders familiar with the recipient's immediate schedule, or who do not wish to permanently establish blackout periods.

[00037] Conversely, the external source may specify particular allowed time windows within which a message must be delivered. Once again, these may be established permanently for particular contacts or “on the fly” for specific messages.

[00038] Time-zone scheduling may be employed automatically. For example, if the customer authorizes immediate message delivery at a time that would be late at night where the recipient is located, or schedules message delivery for such a time, transaction server 150 may cause the customer to be prompted with this information and asked to confirm or reschedule delivery.

[00039] 1.4 Escalation

[00040] Rather than send a message to a prospective recipient redundantly via multiple communication modalities, transaction server 150 may be configured to allow the specification of escalation rules for sequential transmission as necessary. The external application selects a plurality of communication modalities and/or contacts, and criteria in the form of rules governing their use. Typically, an escalation rule will specify resort to a different communication modality (or a different recipient) if delivery of the message is not confirmed by a specified time, or within a specified period, using the current communication modality.

[00041] Like scheduling restrictions, escalation rules may be defined permanently for a contact (and stored, along with “address book” information pertaining to that contact, in database 152b) or may instead be defined for a particular message. Default message modalities and permanent escalation rules are particularly useful in the context of distribution lists, since the external application can simply enter a message and leave it to server 125 to deliver it to every person on a selected distribution list in accordance with each contact's escalation rules. On the other hand, message-specific escalation rules may be designated for particular messages transmitted to API 145.

[00042] To implement the escalation rules, the time period specified in a rule relevant to the initial message transmission is sent to scheduler 180. At the end of that time period following transmission, transaction server 150 determines whether the message has been received in the manner described above. If not, the escalation rule (defined in database 152b or in the transaction record for the particular message) is executed, and the message re-transmitted by a different modality. If further escalation rules remain for the message, the appropriate time period is once again provided to scheduler 180, and the flow sequence repeated.

[00043] 2. An Exemplary Application Program Interface

[00044] With reference to FIGS. 1 and 2, external sources such as a server 190 generate requests for messaging functions and status information, and transmit these to server 125 via a computer network, such as the Internet, for processing. FIG. 2 illustrates in greater detail the role and basic components of API 145. Requests are actually generated by an application 210 running as an active process on server 190. Application 210 formats these requests in the syntax allowed by API 145. Requests received by API 145 from application 210 are analyzed by a parser 210, which interprets the request and causes the various server modules of server 125 to take appropriate action. The server modules may generate direct responses to the requests or provide status information for transmission to application 210. A converter 220 places such information into statements conforming to the API syntax prior to transmission.

[00045] Preferably, the API syntax conforms to the conventions of XML, using “tags” to characterize elements such as statements and field data. A tag surrounds the relevant element(s), beginning with a string of the form <tagname> and ending with </tagname>. Thus, parser 215 can be (or be based on) a conventional XML parser.

[00046] The contents of a communication to or from API 145 take the form of a “document,” which contains an identifying tag and either a “Request” (for documents generated by application 210) or a “Response” (for documents that API 145 returns to applications 210). Document elements are hierarchically organized into objects. Each object specifies the contents of fields associated with the object, and may also contain one or more nested, hierarchically inferior objects; this structure maintains the organization of information, facilitates movement of information in meaningful packages, and allows for re-use of information without explicit repetition.

[00047] At the highest hierarchical level, “Super Objects” define the communication as a Request or a Response, and contain one or more “Major Objects.” The Major Objects specify key functional elements of messaging activities, defining the relevant user accounts and the nature of the desired message functions, and may contain sub-objects and/or entries for various fields within the Major Objects. Fields contain information, such as character strings or numbers, relevant to the objects containing them.

[00048] The overall organization of a preferred implementation of API 145 appears in summary form below; following the summary, the various objects and fields are described in greater detail. It should be understood that this API is illustrative only.

[00002]

TABLE 1
Basic API Organization
I.	Super Objects: contain required fields and one or more major objects
	A.	Request (fields:)
	i)	UserName
	ii)	Password
	iii)	Domain
	iv)	OEMId
	v)	OEMPassword
	vi)	RequestType
	B.	Response: same fields/objects as request + errors, warnings
II.	Major Objects: required elements of documents, may contain sub-
	objects and fields
	A.	Member (fields:)
	i)	Command
	ii)	Id
	iii)	FirstName
	iv)	LastName
	v)	Company
	vi)	UserName
	vii)	Password
	viii)	AllowNotices
	ix)	DialinId
	x)	Dialin Password
	Member (subobjects:)
	i)	Contact Method
	ii)	Billing (fields: Id; Billing Plan; CurrentBalance)
	iii)	Credit Card (fields you'd expect)
	B.	Contact (subobjects:)
	i)	Contact Method (fields:)
	a.	Id
	b.	Transport
	c.	Qualifier
	d.	Ordinal
	e.	PhoneNum, FaxNum, PagerNum
	f.	Access Code
	g.	Email Address
	h.	Street1
	i.	Street2
	j.	Suite
	k.	City
	l.	State
	m.	Zip
	n.	Country
	ii)	Contact MethodRef (fields:)
	a.	Id
	b.	FirstName, LastName, Company
	c.	Transport, Qualifier, Ordinal
	d.	AllowMultiple
	Contact (fields:)
	i)	Command
	ii)	Id
	iii)	Prefix (optional)
	iv)	First Name, Middle Name, Last Name
	v)	Company (optional)
	vi)	Title (optional)
	C.	Distribution List (fields:)
	i.	Command (create, replace, append, delete, remove)
	ii.	Name
	iii.	Description
	iv.	Id
	D.	Job (fields:)
	i.	Id
	ii.	Charges
	Job (subobjects:)
	i.	Message (fields:)
	A.	Subject
	B.	Template (optional)
	C.	Id
	D.	Date
	Message (subobjects:)
	A.	MessageArg Objects: series of Name/Value tags:
	1)	SENDER
	2)	BODY
	3)	ASK_YESNO_QUESTION
	4)	QUESTION_TO_ASK
	5)	EMAIL_ADDR
	B.	DeliveryTime Objects
	C.	DeliveryTimeModifier Objects
	ii.	Contact (to specify one-time recipient of message)
	iii.	Delivery Request (elements:)
	A.	DeliveryOptions field (in)
	B.	Contact MethodRef sub-object
	Delivery Request (returned elements:)
	A.	ContactMethod
	B.	Contact
	C.	Delivery (fields:)
	1)	Id
	2)	Timestamp
	3)	Duration
	4)	Status (Not Sent, Sent, Failed, Cancelled,
		Cancel Pending)
	5)	Details (Bad Address, Delivery Address is
		unreachable, No Answer, Busy, Answering
		Machine (assumed), Answering Machine,
		Maximum Delivery Attempts Exceeded,
		Acknowledged, Modem, Hangup, Callback
		Later, Internal Error
	6)	Size
	7)	Cost
	D.	DeliveryRequest fields (out)
	1)	Id
	2)	EstDuration
	3)	EstSize
	4)	Status
	5)	Details
	6)	Completed
	E.	Range (fields:)
	i.	Object (i.e., type of object trying to look up)
	ii.	Type
	iii.	Start
	iv.	End

[00049] Every transmission to API 145 requires a Request, which will generate a Response from API 145 (and the server modules with which it functions). The Request must identify one or more valid “members” by means of UserNames. A request contains the following required fields:

[00002]

TABLE 2
Request Fields
			Allowed
Field	Description	In/Out	Values	Example
UserName	Login name that identifies the member	In	String	<UserName>RalphW
				</UserName>
Password	Password for the member assigned by the	In	String	<Password>abc123
	domain			</Password>
Domain	Identifier (generally identifies the	In	String	<Domain>POETS</Domain>
	company or organization to which the
	member belongs)
OEMId	The domain ID (identifies company or	In		<OEMId>kkk52057kk
	organization)			</OEMId>
OEMPassword	The client password	In		<OEMPassword>
				OEMPassword
				</OEMPassword>
RequestType	Requests one of the following actions	In	validate	<RequestType>validate
	Validate (Check all of the fields and sub		commit	</RequestType>
	objects for syntax and validation errors,		lookup
	does not take any additional action)
	Commit (Put the document in database,
	and initiate requested actions)
	Lookup (Find objects in the database,
	based on specified criteria; used with the
	Range object only)

[00050] (In this and other tables, the In/Out column indicates whether the field is used in a Request (in), in a corresponding Response (out), or in both.)

[00051] In addition to fields, the Request will generally contain one or more Major Objects. Typical actions include: send a message to specified recipients; add/edit/delete member, distribution list, contact information; look up the status of a job; send a billing inquiry. The following represents a typical Request (with the Contact Object, discussed in greater detail below, indicated but not actually specified):

• • [00052] <Request>
    • [00053] <UserName>RalphW</UserName>
      • [00054] <Password>abc123</Password>
      • [00055] <Domain>POETS</Domain>
      • [00056] <OEMId>OEMId</OEMId>
      • [00057] <OEMPassword>OEMPassword</OEMPassword>
      • [00058] <RequestType>validate</RequestType>
  • [00059] [Contact Object]
  • [00060] </Request>

[00061] The Response is generally returned with the same objects that were included in the Request; if, however, the Request asks for information (e.g., a request for message status or for billing information), some objects or fields may be added or changed. In addition, the Response will contain Errors and Warnings fields as appropriate:

[00002]

TABLE 3
Errors and Warnings (Response Fields)
			Allowed
Fields	Description	In/Out	Values	Example
Errors	Set to the number of errors discovered	Out	Unsigned	<Errors>2</Errors>
	while processing the major objects		integer
	included in the Request
Warnings	Set to the number of warnings (a less	Out	Unsigned	<Warnings>0</Warnings>
	severe error) discovered while		integer
	processing the major objects included in
	the Request

[00062] Errors and Warnings are described in greater detail below.

[00063] The following represents a typical Response (with the Contact Object once again indicated but not actually specified):

• • [00064] <Response>
    • [00065] <UserName>RalphW</UserName>
    • [00066] <Password>abc123</Password>
    • [00067] <Domain>Poets, Inc. </Domain>
    • [00068] <OEMId> OEMId</OEMId>
    • [00069] <OEMPassword> OEMPassword</OEMPassword>
    • [00070] <ResponseType>validate</ResponseType>
    • [00071] <Errors>2</Errors>
    • [00072] <Warnings>0</Warnings>
  • [00073] [Contact Object]
  • [00074] </Response>

[00075] Requests and Responses specify one or more Major Objects as follows:

[00002]

TABLE 4
Major Objects
Major Object	Description
Member	User-level login that identifies a user account (end user or member)
Contact	Person or organization to which a message may be sent
Distribution List	A group of contact methods (for example, phone number, pager number, email
	address) to which a message may he sent
Job	Message to one or more contacts using one or more contact methods
Range	Used to look up other objects based on specific search criteria; for example, to
	look up a job by Id, or jobs sent on a certain date, or all contacts from the same
	organization

[00076] Each Major Object contains zero or more fields and sub-objects, which may themselves contain additional sub-objects and/or fields. The various Major Objects will now be described in detail.

[00077] Major Objects—Member: generally an end user of the messaging service.

[00078] Major Objects—Member—Fields: The Member object has the following fields:

[00002]

TABLE 5
Memeber Major Object Fields
			Allowed
Fields	Description	In/Out	Values	Example
Command	Requests one of the following	In	create	<Command>create</Command>
(Required)	actions:		update
	Create (Add a new Member		remove
	object)
	Update (Modify Member object
	information)
	Remove (Remove a Member
	object
Id	Unique identifer assigned in a	Create	Alphanumeric	<Id>k5j34kd</Id>
	Response to a Request to create a	(Out)	string
	Member object	Update (In)
		Remove (In)
FirstName	The member's first name	In	String	<FirstName>Virginia</FirstName>
(Required)			with a 32
			character
			limit
LastName	The member's last name	In	String	<LastName>Woolf</LastName>
(Required)			with a 32
			character
			limit
Company	The member's company affiliation	In	String	<Company>Hogarth
(Optional)			with a 32	Press</Company>
			character
			limit
UserName	The member's login; must be	In	String	<UserName>VirginiaW</UserName>
	unique within the domain		with a 32
			character
			limit
Password	The member'secret password	In	String	<Password>abc123</Password>
			with a 32
			character
			limit
AllowNotices	Marks this member as being	In	“True” (to	<AllowNotices>true
	interested in receiving receive		allow):	</AllowNotices>
	periodic mailings specific to this		otherwise,
	domain		“False”
DailinId	This is a way for the member to	In	Numeric	<DialinId>9146445543</DialinId>
	identify himself when calling into		string
	a voice response (automated
	touch tone telephone) system
DialinPassword	Serves as a PIN for the voice	In	Numeric	<DialinPassword>1234
	response system		string	</DialinPassword>

[00079] Major Objects—Member—Sub-objects: In addition, the Member object contains the following required sub-objects:

[00080] Major Objects—Member—Sub-objects—Contact Method: specifies communication mode (e-mail, telephone, etc.) and contact information (e-mail address, telephone number, etc.) specific thereto. Contact Method sub-objects are further described below in connection with the Contact Major Object.

[00081] Major Objects—Member—Sub-objects—Billing: specifies the billing plan and details necessary to bill the member (such as a credit-card number). The object also describes the current account status. The following table sets for the required fields for the billing sub-object:

[00002]

TABLE 6
Member Major Object
Billing Sub-object
			Allowed
Fields	Description	In/Out	Values	Example
Id	Unique identifier	Out		<Id>k1231bj4</Id>
Billing Plan	Indicates which plan the member is	In		<BillingPlan>kkk33kkkk
	using (pay-as-you-go, prepaid, both			</Billing Plan>
	using a credit card)
CurrentBalance	Current balance in US dollars as a	Out		<currentBalance>15.22
	floating point number			</CurrentBalance>

[00082] The billing sub-object, in turn, contains a Credit Card sub-object, the fields for which are set forth in the following table:

[00002]

TABLE 7
Member Major Object
Billing Sub-object
Credit Card Sub-object
			Allowed
Fields	Description	In/Out	Values	Example
FirstName,	Name as it	In	Each name field	<FirstName>Virginia<1/FirstName>
MiddleName,	appears on the		is a string with a	<MiddleName>L.</MiddleName>
LastName	credit card		32-character	<LastName>Woolf</LastName>
			limit
CreditCard	Required	In	Number as it	<CreditCardNumber>5123123412341233
Number			appears on the	</CreditCardNumber>
			credit card
Expiration	Expiration	In	Two-digit	<ExpirationMonth>8</ExpirationMonth>
Month	month as it		number as it
	appears on the		appears on the
	credit card		card
Expiration Year	Expiration year	In	Four-digit	<ExpirationYear>2001</ExpirationYear>
	as it appears on		number
	the credit card
StreetAddress1	First line of the	In	First line of	<StreetAddress1>25 Hollywood
	street address		billing address	St.</StreetAddress1>
	for this card		for this card
StreetAddress2	Second line of	In	Second line of	<StreetAddress2>Hogarth Press
	the street		billing address	Inc.</StreetAddress2>
	address for this		for this card
	card
City	City of billing	In	City name	<City>Los Angeles</City
	address for this
	card
State	State of billing	In	Use two-letter	<State>CA</State>
	address for this		state
	card		abbreviation
Zip	Zip code in the	In	Zip codes can be	<Zip>90210-1234</Zip>
	US, postal code		either five or
	outside		nine digits;
			hyphen is
			optional
Country	Country	In	Country name	<Country>USA</Country>

[00083] The following is an example of entire Member Object:

• [00084] <Member>
  • [00085] <Command>create</Command>
  • [00086] <FirstName>Ralph</FirstName>
  • [00087] <LastName>Emerson</LastName>
  • [00088] <Company>Poets R Us</Company>
  • [00089] <UserName>RWE</UserName>
  • [00090]  Password>MyPassword</Password>
  • [00091]  <DialinId>12345</DialinId>
  • [00092] <DialinPassword>12345</DialinPassword>
    • [00093] <ContactMethod>
      • [00094] <Transport>email</Transport>
      • [00095] <Qualifier>none</Qualifier>
      • [00096] <EmailAddress>[email protected]</EmailAddress>
    • [00097] </ContactMethod>
    • [00098] <ContactMethod>
      • [00099] <Transport>phone</Transport>
      • [00100] <Qualifier>office</Qualifier>
      • [00101] <Ordinal>0<Ordinal/Ordinal>
      • [00102] <PhoneNum>617-123-4567</PhoneNum>
    • [00103] </ContactMethod>
    • [00104] <Billing>
      • [00105] <BillingPlan>kkk33kkkk<BillingPlan>
      • [00106] <CurrentBalance>1.00<CurrentBalance>
        • [00107] <CreditCard>
        • [00108]  <FirstName>Ralph</FirstName>
        • [00109]  <MiddleName>Waldo</MiddleName>
        • [00110]  <LastName>Emerson</LastName>
        • [00111]  <CreditCardType>Master Card</CreditCardType>
        • [00112]  <CreditCardNumber>5123123412341233</Cre ditCardNumber>
        • [00113]  <ExpirationYear>2001</ExpirationYear>
        • [00114]  <ExpirationMonth>8</ExpirationMonth>
        • [00115]  <StreetAddress1>1313 Mockingbird Lane</StreetAddress1>
        • [00116]  <StreetAddress2>Poets R Us</StreetAddress2>
        • [00117]  <City>Warren</City
        • [00118]  <State>MA</State>
        • [00119]  <Zip>01810</Zip>
        • [00120]  <Country>USA</Country
        • [00121] </CreditCard>
      • [00122] </Billing>
  • [00123] </Member>

[00124] Major Objects—Contact: identifies an individual to whom a message may be sent. A Contact Object contains one or more Contact Method sub-objects (described below), each of which identifies a way to reach the individual. Contact and Contact Method information may or may not be stored in a member's Address Book (i.e., the a collection of a member's Contacts and their associated Contact Methods stored in database 152b). Thus, a Contact Major Object may be created to be stored in an Address Book, or for one-time use.

[00125] Major Objects—Contact—Fields: The Contact object has the following fields:

[00002]

TABLE 8
Contact Major Object Fields
Fields	Description	In/Out	Allowed Values	Example
Command	Requests one of the	In	create	<Command>create</Command>
	following actions:		update
	Create (Add a new		remove
	Contact object)		NOTE: (This field is
	Update (Modify Contact		required only when the
	object information)		Contact is to be used as
	Remove (Remove a		a major object; that is, so
	Contact object)		the contact is stored in
			the Address Book for
			reuse.)
Id	Required field that	In (for	Supplied after a contact	<Id>k5j34kd</Id>
	identifies the member	update	has been created.
	when the Command field	and
	is used to update or	remove)
	remove the Contact.
Prefix	Indicates the contact's	In	String	<Prefix>Mr.</Prefix>
(Optional)	preferred title, for
	example, Mr., Ms, Dr.
First Name	The contact's first, middle	In	Each name field is a	<FirstNamex>William
Middle Name	and last names; first and		String with a 32-	</FirstName>
Last Name	last names are required		character limit	<MiddleName>S.
				</MiddleName>
				<LastName>Shakespeare
				</LastName>
Company	Indicates the name of the	In	String with a 32-	<Company>Globe Theater,
(Optional)	company or organization		character limit	Inc.</Company>
	with which the contact is
	affiliated
Title	Indicates a job title for	In	String with a 32-	<Title>Director</Title>
(Optional)	the contact		character limit

[00126] Use of the Command field ensures that the Contact Object will be stored in the Address Book of the member with which it is associated. When the Contact Object is nested as a sub-object of a Job object (described below), the contact information will not be stored in an Address Book.

[00127] The following represents a typical Contact Object (with Contact Method objects indicated but not actually specified):

• [00128] <Contact>
  • [00129] <Prefix>Mr.</Prefix>
    • [00130] <FirstName>William</FirstName>
    • [00131] <MiddleName>L.</MiddleName>
    • [00132] <LastName>Shakespeare</LastName>
    • [00133] <Company>Globe Theater, Inc. </Company>
    • [00134] <Title>Director</Title>
    • [00135] [ContactMethod Objects]
• [00136] </Contact>

[00137] Major Objects—Contact—Sub-objects—Contact Method: as explained above, this object specifies the manner in which a member may be contacted. A Contact Method sub-object may contain some or all of the

[00002]

TABLE 9
Contact Method Sub-object Fields
Fields	Description	In/Out	Allowed Values	Example
Id	Identifies this	In or Out	Required based on the logic	<Id>k5j34kd</Id>
	Contact Method		for the parent Contact object.
	object		NOTE: The Contact Method
			object does not have a
			Command field; rather, it is
			nested within a Contact object
			that does have a Command
			field.
Transport	Indicates	In	Phone	<Transport>email</Transport>
(Required)	delivery		Fax
	method		Pager
			Email
			Mail
Qualifier	Indicates the	In	Home	<Qualifier>cell</Qualifier
(Required)	type of phone or		Home2
	fax		Office
			Office2
			Cell
			NOTE: Member is a legal
			value for Qualifier only when
			used in a Member object.
Ordinal	A counter that	In	Unsigned integer, Only	<Ordinal>0</Ordinal>
	allows entry of		required if there is more than
	more than one		one of a particular kind of
	exact type of		contact method (home 0,
	contact method.		home1). For example, for your
			first phone number, the
			ordinal would be “0”; for the
			second, the ordinal would be
			“1”
PhoneNum	Telephone	In	Typical phone number with	<PhoneNum>212-123-
FaxNum	number for		area code (no “1” for long	4567</PhoneNum>
PagerNum	phone, fax,		distance needed); for example	<FaxNum>2121234568</FaxNum>
	pager		2121234567; hyphen is	<PagerNum>800-456-
			optional	4567</PagerNum>
Access	Access number	In	Used only when the pager	<AccessCode>77325#</AccessCode>
Code	for a pager		service requires the caller to
			enter an identifying touch tone
			string (sometimes, ending with
			the pound sign or asterisk)
			before entering a callback
			number
Email	Email address	In	Typical email address	<EmailAddress>!<[CDATA[jkrowling
Address				@bloomsbury.com]]>
				</EmailAddress>
Street1	Street address	In	String with 32 character limit	<Street1>100 Park
				Avenue</Street1>
Street2	Second line of	In	String with 32 character limit	<Street2>Waldorf Astoria
	address			Hotel</Street2>
Suite	Suite number, if	In	String with 32 character limit	<Suite>Tower Suite 1400</Suite>
	applicable
City	City	In	String with 32-character limit	<City>New York</City>
State	State	In	Two-character abbreviation	<State>NY</State>
Zip	Zip code in the	In	String	<Zip>10021</Zip>
	US; postal code
	elsewhere
Country	Country	In	String with 32 character limit	<Country>USA</Country>

[00138] To denote a member's primary e-mail address, for example, the following syntax is employed:

• • [00139] <Contact Method>
    • [00140] <transport>email</transport>
    • [00141] <qualifier>member</qualifier>
    • [00142] <EmailAddress>[email protected]</EmailAddress>
  • [00143] </Contact Method>

[00144] The following example illustrates addition of a new contact to an Address Book:

• [00145] <Contact>
  • [00146] <Command>create</Command>
    • [00147] <FirstName>Albus</FirstName>
    • [00148] <LastName>Dumbledore</LastName>
    • [00149] <Company>Hogwarts School for Witchcraft and Wizardry</Company>
    • [00150] <Title>Headmaster</Title>
  • [00151] <ContactMethod>
    • [00152] <Transport>phone</Transport>
    • [00153] <Qualifier>cell</Qualifier>
    • [00154] <PhoneNum>9785551234</PhoneNum>
  • [00155] </ContactMethod>
  • [00156] <ContactMethod>
    • [00157] <Transport>pager</Transport>
    • [00158] <PagerNum>8885551234</PagerNum>
    • [00159] <AccessCode>1030#</AccessCode>
  • [00160] </ContactMethod>
• [00161] </Contact>

[00162] Major Objects—Contact—Sub-objects—Contact MethodRef: once a Contact Method has been created and stored, it may be referred to using a pointer called a Contact MethodRef. The pointer contains the Contact Method's Id, or a combination of fields that will uniquely identify that Contact Method.

[00163] A Contact MethodRef sub-object may contain some or all of the following fields:

[00002]

TABLE 10
Contact MethodRef Sub-object Fields
Fields	Description	In/Out	Allowed Values	Example
Id	Identifies this Contact	In	Exsisting Contact Method ID	<Id>k5734kd</Id>
	Method object
FirstName	These fields are all	In	Existing Contact fields	<FirstName>Ron</Firstname>
LastName	from the Contact			<LastName>Weasley</Lastname>
Company	object			<Company>Hogwarts<Company>
Transport	These fields are all	In	Existing Contact Method	<Transport>email</Transort>
Qualifier	from the Contact		fields	<Qualifier>home</Qualifier>
Ordinal	Method sub-object			<ordinal>0<Ordinal>
AllowMultiple		In	true (default value)	<AllowMultiple>true
			false	</AllowMultiple>
			If this field is set to a value
			of “false”, will only return
			the first Contact Method
			that meets your criteria.

[00164] Major Objects—Distribution List: a Distribution List is a grouping of Contact Methods. It allows a member to send a message to all of the Contact Methods in that list. A Distribution List object may contain some or all of the following fields:

[00002]

TABLE 11
Distribution List Major Object Fields
Fields	Description	In/Out	Allowed Values	Example
Command	Indicates the desired action. Options	In	Must include one of	<Command>append
(Required)	include:		the following values:	</Command>
	Create (Create a Distribution List)		create
	Replace (Replace existing Contact		replace
	Methods in this list with the Contact		append
	Methods contained in this request)		delete
	Append (Add Contact Methods to the		remove
	existing list)
	Delete (Delete Contact Methods from the
	list)
	Remove (Remove the whole Distribution
	List)
Name	Unique name for Distribution List	In	When creating a list,	<Name>Gryffindor</Name>
			give it a unique name;
			for example,
			“Gryffindor” (32
			character limit).
			NOTE: When using
			any other command
			option, you must enter
			either Name or Id field
			to identify the
			Distribution List
Description	Descriptive text about the list	In	Optional field	<Description>Gryffindor
				House</Description>
Id	Unique identifier for the List	In/Out	If the value of the	<Id>k431k45</Id>
			Command field is
			create, no Id field is
			required, if any other
			value, enter a value
			for either Name or Id
			field

[00165] In addition, the Distribution List object must have a list of Contact MethodRef sub-objects (i.e., pointers to already-created Contact Method objects). An exemplary Distribution List object is as follows:

• [00166] <Distribution List>
  • [00167] <Command append</Command
  • [00168] <Name>Gryffindor</Name>
  • [00169] <ContactMethodRef>
    • [00170] <LastName>Potter</LastName>
    • [00171] <Transport>email</Transport>
  • [00172] </ContactMethodRef>
  • [00173] <ContactMethodRef>
    • [00174] <Id>kkk3btkk</Id>
  • [00175] </ContactMethodRef>
  • [00176] </Distribution Lists

[00177] Major Objects—Job: a Job object contains a message to one or more Contacts using one or more Contact Methods, and contains sub-objects that define the specifics of the messaging task (e.g., the sender, the body of the message, recipients, etc.) A Job object also contains at least one Message sub-object (described below), and one or more Delivery Request or Contact sub-objects.

[00178] A Job object contains only two fields, and these are specified only in a Response:

[00002]

TABLE 12
Job Major Object Fields
Fields	Description	In/Out	All wed Values	Example
Id	Identifier for this Job	Out		<Id>kkk3btkk</Id>
Charges	Estimated cost of this	Out	Floating point number	<Charges>1.60</Charges>
	Job

[00179] Major Objects—Job—Sub-objects—Message: the Message sub-object specifies the actual message. It includes fields and optional MessageArg Objects, and allows the requester to specify delivery times.

[00002]

TABLE 13
Job Major Object
Message Sub-object Fields
Fields	Description	In/Out	All wed Values	Example
Subject field	The “Subject” line of the	In	The actual text of your	<Subject > <![CDATA
(Required)	message		message.	[Friday's sales meeting
				is cancelled.]]>
				</Subject>
Template		In		<Template>generic
(optional)				</Template>
field
Id	Unique identifier for this	Out		<Id>kkk171bj4</Id>
	Message sub-object
Date	Marks the date and time	Out		<Date>1999:10:20
	the message was			19:14:39</Date>
	submitted
DeliveryTime	Marks the requested time	In		<DeliveryTime>1999:10:20
	of delivery			19:14:39</DeliveryTime>
DeliveryTime	Options related to the	In	StartingAt or TryToFinishBy	<DeliveryTimeModifer>
Modifier	requested delivery time			StartingAt</DeliveryTime
				Modifier>

[00180] Major Objects—Job—Sub-objects—Message—MessageArg Sub-objects: a Message object contains one or more MessageArg sub-objects that consist of a series of Name/Value tags according to the following syntax:

• • [00181] <MessageArg>
    • [00182] <Name>SENDER</Name>
    • [00183] <Value>Hermione Grainger</Value>
  • [00184] </MessageArg>

[00185] The optional MessageArg Name/Value tags are as follows:

[00002]

TABLE 14
Job Major Object
Message Sub-object
MessageArg Sub-object Tags
	Legal
Name	Values	Description	Example
SENDER	Character	The sender's	<MessageArg>
	string	(member) name. It is	<Name>SENDER</Name>
		used in the From field	<Value>Oliver Wood</Value>
		for all methods of	</MessageArg>
		transport except
		email.
BODY	Character	The actual text of the	<MessageArg>
	string	message. This text	<Name>Body</Name>
		should be enclosed in	<Value< >![CDATA
		CDATA tags.	[I have scheduled an extra Quidditch
			practice session before the match
			with Slytherin. Be there Wednesday at
			8:00 AM sharp.]]>
			</Value>
			</MessageArg>
ASK_YESNO_QUESTION	YES	If a yes/no question is	<MessageArg>
	NO	asked, this should be	<Name>ASK_YESNO_QUESTION</Name>
		set to YES, otherwise	<Value>YES</Value>
		NO; for example	</MessageArg>
QUESTION_TO_ASK		If the	<MessageArg>
		ASK_YESNO_QUESTION	<Name> <QUESTION_TO_ASK</Name>
		field is set to	<Value> <![CDATA
		YES, use this field to	[Can you make the practice session?]]>
		enter the actual text of	</Value>
		the question.	</MessageArg>
EMAIL_ADDR		The email address that	<MessageArg>
		is used in the From	<Name>EMAIL_ADDR</Name>
		and Reply-to fields	<Value> <![CDATA[[email protected]]]>
		when sending a	</Value>
		message via email.	</MessageArg>

[00186] An exemplary Job Object is as follows:

• [00187] <Job>
  • [00188] <Message>
  • [00189] <Subject>Extra Quidditch Practice</Subject>
  • [00190] <Template>generic</Template>
    • [00191] <MessageArg>
      • [00192] <Name>SENDER</Name>
        • [00193] <Value>Oliver Wood</Value>
    • [00194] </MessageArg>
    • [00195] <MessageArg>
      • [00196] <Name>BODY</Name>
      • [00197] <Value><|[CCDATA[
        • [00198] I have scheduled an extra Quidditch practice session before the match with Slytherin. Be there Wednesday at 8:00 AM sharp.
        • [00199] ]]>
      • [00200] </Value>
    • [00201] </MessageArg>
    • [00202] <MessageArg>
      • [00203] <Name>ASK_YESNO_QUESTION</Name>
      • [00204] <Value>YES</Value>
    • [00205] </MessageArg>
    • [00206] <MessageArg>
      • [00207] <Name><QUESTION_TO_ASK</Name>
        • [00208] <Value><|[CCDATA[
        • [00209]  Can you make the practice session?]]>
        • [00210] </Value>
    • [00211] </MessageArg>
    • [00212] <MessageArg>
      • [00213] <Name>EMAIL_ADDR</Name>
      • [00214] <Value><|[CDATA[[email protected]]]>
      • [00215] </Value>
    • [00216] </MessageArg>
• [00217] </Message>
• [00218] <Contact>
  • [00219] <FirstName>Harry</FirstName>
  • [00220] <LastName>Potter</LastName>
  • [00221] <ContactMethod>
    • [00222] <Transport>email</Transport>
    • [00223] <EmailAddress>[email protected]</EmailAdddress>
  • [00224] </ContactMethod>
• [00225] </Contact>
• [00226] <DeliveryRequest>
  • [00227] <ContactMethodRef>
    • [00228] <LastName>Weasley</LastName>
    • [00229] <Transport>email</Transport>
  • [00230] </ContactMethodRef>
• [00231] </DeliveryRequest>
• [00232] </Job>

[00233] Major Objects—Job—Sub-objects—Delivery Request: the Delivery Request sub-object allows the requester to specify a recipient for a job, as well as to specify delivery options (as fields within the sub-object). The Delivery Request Object may contain a Contact MethodRef sub-object (to refer to a previously created contact method for the recipient) or may instead refer to a Contact sub-object of a Job object (for one-time use of that Contact/Contact Method).

[00234] An exemplary Delivery Request sub-object is as follows:

• [00235] <DeliveryRequest>
  • [00236] <ContactMethodRef>
    • [00237] <LastName>Potter</LastName>
    • [00238] <Transport>email</Transport>
    • [00239] <Qualifier>home</Qualifier>
  • [00240] </ContactMethodRef>
• [00241] </DeliveryRequest>

[00242] The Delivery Request sub-object is also returned by API 145 as a Response. Furthermore, when an existing Job object is retrieved using a Range object lookup (described below), that job's Delivery Requests are also returned.

[00243] The Delivery Request sub-object may contain the following fields:

[00002]

TABLE 15
Job Major Object
Delivery Request Sub-object Fields
			Allowed
Fields	Description	In/Out	Values	Example
DeliveryOptions	Sets the delivery options	In	standard	<DeliveryOptions>standard
			urgent	</DeliveryOptions>
Id	Unique identifier for this Delivery	Out		<Id>kkk224524</Id>
	Request
EstDuration	Returns length of time, in seconds, that	Out	Integer	<EstDuration>80
	server estimates it will be on the phone			</EstDuration>
	during this delivery
EstSize	Estimated number of pages in a fax, if it	Out	Integer	<EstSize>3</EstSize>
	was a fax
Status	Returns delivery status of the message for	Out	Not Sent	<Status>SENT</Status>
	this Delivery Request:		Sent
	Not Sent (This Delivery Request has not		Failed
	yet been delivererd.)		Cancelled
	Sent (This Delivery Request has been		Cancel
	successfully delivered.)		Pending
	Failed (The final attempt at delivery
	failed.)
	Cancelled (Your Delivery Request was
	cancelled.)
	Cancel Pending (Your Delivery Request
	cancellation is pending.)
Details	Gives the following information about the	Out	See	<Details>Modem</Details>
	status of the current delivery attempt:		Description
	Bad Address
	Delivery Address is unreachable (No
	further attempts will be made.)
	No Answer (another delivery may be
	attempted.)
	Busy (another delivery may be
	attempted.)
	Answering Machine (assumed) (phone
	message delivered, no further attempts
	will be made)
	Answering Maching (phone message
	delivered, no further attempts will be
	made)
	Maximum Delivery Attempts Exceeded
	(No further attempts will be made.)
	Acknowledged (message delivered; if
	phione, the person acknowledged by
	pressing 1. No further attempts will be
	made.)
	Modem (No further attempts will be
	made.)
	Hangup (Call was dropped before
	message could be delivered, may attempt
	another delivery.)
	Callback Later (Message recipient
	elected a later callback, another delivery
	will be attempted.)
	Internal Error (internal error
	encountered, may attempt another
	delivery.)
Completed	True if no further delivery attempts will	Out	true	<Completed>true
	be made for this delivery request.		false	</Completed>

[00244] An exemplary Delivery Request Response is as follows:

• • [00245] <DeliveryRequest>
    • [00246] <ID>kztubkkkk</ID>
    • [00247] <EstDuration>80</EstDuration>
    • [00248] <Status>Not Sent</Status>
    • [00249] <DeliveryOptions>Standard</DeliveryOptions>
    • [00250] <Completed>false</Completed>
    • [00251] <ContactMethod>
      • [00252] <ID>kit5bkkuk</ID>
      • [00253] <Transport>phone</Transport>
      • [00254] <Qualifier>office</Qualifier>
      • [00255] <Unreachable>false</Unreachable>
      • [00256] <EmailAddress>[email protected]</E mailAddress>
    • [00257] </ContactMethod>
    • [00258] <Contact>
      • [00259] <ID>kk36bkkkk</ID>
      • [00260] <Prefix></Prefix>
      • [00261] <FirstName>Harry</FirstName>
      • [00262] <MiddleName></MiddleName>
      • [00263] <LastName>Potter</LastName>
      • [00264] <Company>Hogwarts School for Witchcraft and Wizardry</Company>
      • [00265] <Title>Student</Title>
      • [00266] <OneTime>true</OneTime>
    • [00267] </Contact>
  • [00268] </DeliveryRequest>

[00269] Major Objects—Job—Sub-objects—Delivery Request—Delivery Sub-object: the Delivery sub-object never appears in a Request. It is returned by API 145 as a sub-object of a Delivery Request object when a Range object lookup (see below) is performed on a job.

[00270] The Delivery sub-object may contain the following fields:

[00002]

TABLE 16
Job Major Object
Delivery Request Sub-object
Delivery Sub-object Fields
			Allowed
Fields	Description	In/Out	Values	Example
Id	Unique identifier for this Delivery	Out		<Id>kkk224524</Id>
Timestamp	Time delivery was made	Out	Integer	<Timestamp>2000:06:05
				04:15:22</Timestamp>
Duration	Returns length of time, in seconds, that	Out	Integer	<Duration>80</Duration>
	server was on the phone during
	this delivery.
Status	Returns delivery status of the message for	Out	Not Sent	<Status>SENT</Status>
	this Delivery.		Sent
	Not Sent (This Delivery Request has not		Failed
	yet been delivererd.)		Cancelled
	Sent (This Delivery has been successfully		Cancel
	delivered.)		Pending
	Failed (The final attempt at delivery failed.)
	Cancelled (Your Delivery was cancelled.)
	Cancel Pending (Your Delivery cancellation
	is pending.)
Details	Gives the following information about the	Out		<Details>Modem</Details>
	status of this delivery attempt:
	Bad Address
	Delivery Address is unreachable (No
	further attempts will be made.)
	No Answer (another delivery may be
	attempted.)
	Busy (another delivery may be attempted.)
	Answering Machine (assumed) (phone
	message delivered, no further attempts will
	be made)
	Answering Maching (phone message
	delivered, no further attempts will be made)
	Maximum Delivery Attempts Exceeded
	(No further attempts will be made.)
	Acknowledged (message delivered; if phone,
	the person acknowledged by pressing 1. No
	further attempts will be made.)
	Modem (No further attempts will be made.)
	Hangup (Call was dropped before message
	could be delivered, may attempt another
	delivery.)
	Callback Later (Message recipient elected a
	later callback, another delivery will be
	attempted.)
	Internal Error (internal error encountered,
	may attempt another delivery.)
Size	Number of pages in a fax, if it was a fax	Out	standard	<Size>3</Size>
			urgent
Cost	Actual cost for this delivery in US Dollars	Out	Floating	<Cost>18.20</Cost>
			point
			value

[00271] Major Objects—Range: The Range object facilitates retrieval of a list of objects based on specified criteria. In particular, the Range object can retrieve Distribution List, Job, and Contact objects. The Response to a Range object returns the requested objects.

[00272] The Range Major Object may contain the following fields:

[00002]

TABLE 17
Range Major Object Fields
Fields	Description	In/Out	Allowed Values	Example
Object	Specifies the type of object you	In	Distribution List	<Object>
	are trying to look up		Job	DistributionList
			Contact	</Object>
			Member
Type	Specifies criteria for the	In	If <Object> value is	<Type>Name</Type>
	lookup; depend on the value		Distribution List:
	of <Object>:		Name (look up by Name field)
	Distribution List		Id (look up by Id field)
	Job		All (return all Dist. Lists for
	Contact		this Member)
	Member		Job:
			Date (look up by date)
			Id (look up by Id)
			All (return all Jobs for this
			Member)
			Contact:
			LastName (look up by
			LastName field)
			Id (lookup by Id field)
			Company (lookup by
			Company field)
			All (return all Contacts for this
			Member)
			Member:
			Username (lookup by
			Username field)
			Id (lookup by Id field)
Start	Specifies criteria for the data	In	String	If <Type>LastName</Type>
	you are looking up; depends			Then,
	on the value of <Type>			<Start>Potter</Start>
				If <Type>Date</Type>
				Then, <Start>2000:02:14
				12:30:00</Start>
End	Specifies the end of a date	In	yyyy:mm:dd:hh:mm:ss	<End>2000:02:14
	range; only used if the value of			12:35:00</End>
	<Type> is “Date”

[00273] The Range object is always included in a Request object, with the value of the RequestType set to “lookup.” The most common use for the Range object is to look up a Job object by Id, for example,

• • [00274] <Range>
    • [00275] <Object>job<Object>
    • [00276] <Type>Id</Type>
    • [00277] <Start>kkky5btk</Start>
  • [00278] <Range>

[00279] Error Handling: Errors fall into three classes: parsing errors, fatal errors, and errors/warnings encountered while validating any object or field.

[00280] Parsing errors occur when the input XML tags do not conform to XML specifications. Typical examples of malformed XML code include tags that are not closed and illegal characters; to avoid the latter type of error, freeform text should be enclosed within CDATA tags. When parsing errors are encountered, API 145 returns a ParseErrors object, which contains one or more sub-objects called ParseError and having the following fields:

[00002]

TABLE 18
ParseError Sub-object Fields
			Allowed
Fields	Description	In/Out	Values	Example
ErrorString	Text explaining the error	Out	String	<ErrorString>Expecting
				‘a name’, found
				‘?’</ErrorString>
LineNumber	Line number where error found	Out	Integer	<LineNumber>0
				</LineNumber>

[00281] An example is as follows:

• • [00282] <ParseErrors>
    • [00283] <ParseError>
      • [00284] <ErrorString>Expecting ‘a name’, found ‘?’,/ErrorString>
      • [00285] <LineNumber>9</LineNumber>
    • [00286] </ParseError>
  • [00287] </ParseErrors>

[00288] A fatal error signifies a significant problem encountered in the course of processing a Request. API 145 returns a FatalError object with a single field (ErrorString), which indicates the nature of the error. For example,

• • [00289] <FatalError>
    • [00290] <ErrorString>User Transaction Server Unavailable.</ErrorString>
  • [00291] </FatalError>
    Validation errors and warnings are attached to problematic objects or fields as “attributes.” The Errors and Warnings fields of a Response object contain the following information:

[00002]

TABLE 19
Response Super Object
Errors and Warnings Fields
			Allowed
Fields	Description	In/Out	Values	Example
Errors	Set to the number of errors discovered	Out	Unsigned	<Errors>2</Errors>
	while processing the major objects		integer
	included in the Request
Warnings	Set to the number of warnings (a less	Out	Unsigned	<Warnings>1</Warnings>
	severe error) discovered while		integer
	processing the major objects included in
	the Request

[00293] For example, if a Request contains an invalid telephone number, a warning attribute will be attached to the problematic <PhoneNum> field. If a Request fails to provide a Billing sub-object when trying to add a Member, an error attribute will be attached to the Member object.

[00294] It will therefore foregoing represents a full-featured messaging system capable of operating in multiple communication modes and interacting with remote applications through a common, extensible interface. The terms and expressions employed herein are used as terms of description and not of limitation, and there is no intention, in the use of such terms and expressions, of excluding any equivalents of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the invention claimed.