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Instant Messaging Delivery and Read Reports Requirements Draft

This document outlines the requirements for delivery notifications in instant messaging, specifying the capability to request, send, and indicate successful delivery or errors, including message details and timestamps.

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Instant Messaging Delivery and Read Reports Requirements Draft

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  1. IM Delivery and Read Reports Hisham Khartabil hisham.khartabil@telio.no

  2. Requirementsdraft-rosenberg-simple-messaging-requirements-01 • It MUST be possible for the sender of an IM to request a delivery notification. • It MUST be possible for the delivery notification to be sent at an arbitrary time in the future. • The delivery notification MUST be capable of indicating that the message was delivered to the intended target. • The delivery notification MUST be capable of indicating whether the message was delivered successfully, or whether, when it was delivered, the recipient generated an error. • The delivery notification MUST indicate the time of message delivery. • The delivery notification MUST indicate the specific message which was delivered. • When an IM is sent to a group, there MUST be delivery notifications generated about the delivery of the IM to each group participant. • MUST support recursive groups.

  3. Solution Example 1 UA1 Proxy UA2 MESSAGE MESSAGE 200 Ok 200 Ok MESSAGE MESSAGE 200 Ok 200 Ok

  4. Solution Example 2 UA1 IM Server UA2 MESSAGE 200 Ok MESSAGE 481 Ok MESSAGE 200 Ok

  5. IM MESSAGE ... Content-type: Message/CPIM From: Alice <im:alice@example.com> To: Bob <im:bob@example.com> Message-ID: 34jk324j Receipt-Request: positive-delivery, negative-delivery Content-type: text/plain Content-length: 12 Hello World Report MESSAGE ... Content-type: Message/CPIM From: Bob <im:bob@example.com> To: Alice <im:alice@example.com> Content-type: message/status-report Content-Disposition: confirm Content-length: ... <status-report> <message-id>34jk324j</message-id> <recipient-uri>bob@example.com</recipient-uri> <type>delivery</type> <status>200</status> <note lang="en">The message was successfully Delivered</note> </status-report> Examples

  6. Issues • Content-Disposition header in the report. Should it be on SIP/MSRP level or message/cpim?

  7. Way Forward • No need to discuss technical issues yet • Is the WG interested in solving such problem?

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