Note: This protocol suite is obsolete. For updated protocol suites, refer to XMPP Intermediate IM Client 2008 (XEP-0213)  and XMPP Intermediate IM Server 2008 (XEP-0216) .
The Basic IM Protocol Suite (XEP-0073)  introduced the concept of a "protocol suite". This document extends the basic support specified in XEP-0073 by specifying an Intermediate IM Protocol Suite.
This document follows the same approach as XEP-0073. By design, the Basic IM Protocol Suite does not include more advanced instant messaging functionality; the present document fills the need for a protocol suite that addresses such functionality.
A protocol is deemed worthy of inclusion in this protocol suite if:
We define the Intermediate IM Protocol Suite as follows:
|XEP-0073: Basic IM Protocol Suite||REQUIRED|
|Multi-User Chat (XEP-0045) ||REQUIRED|
|XHTML-IM (XEP-0071) ||REQUIRED|
|SI File Transfer (XEP-0096) ||REQUIRED|
|Entity Capabilities (XEP-0115) ||REQUIRED|
Note well that the foregoing protocols apply to clients only (i.e., they do not introduce new requirements for servers). In addition, these protocols have their own dependencies, which include the following XEPs (as well as various IETF RFCs and W3C specifications):
In addition, because the intermediate suite builds on the basic suite, by definition all protocols required by XEP-0073 are also required by the intermediate suite (refer to XEP-0073 for details).
This document introduces no additional security considerations above and beyond those defined in the documents on which it depends.
This document requires no interaction with the Internet Assigned Numbers Authority (IANA) .
No namespaces or parameters need to be registered with the XMPP Registrar  as a result of this document.
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This XMPP Extension Protocol is copyright © 1999 – 2018 by the XMPP Standards Foundation (XSF).
Permission is hereby granted, free of charge, to any person obtaining a copy of this specification (the "Specification"), to make use of the Specification without restriction, including without limitation the rights to implement the Specification in a software program, deploy the Specification in a network service, and copy, modify, merge, publish, translate, distribute, sublicense, or sell copies of the Specification, and to permit persons to whom the Specification is furnished to do so, subject to the condition that the foregoing copyright notice and this permission notice shall be included in all copies or substantial portions of the Specification. Unless separate permission is granted, modified works that are redistributed shall not contain misleading information regarding the authors, title, number, or publisher of the Specification, and shall not claim endorsement of the modified works by the authors, any organization or project to which the authors belong, or the XMPP Standards Foundation.
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This XMPP Extension Protocol has been contributed in full conformance with the XSF's Intellectual Property Rights Policy (a copy of which can be found at <https://xmpp.org/about/xsf/ipr-policy> or obtained by writing to XMPP Standards Foundation, P.O. Box 787, Parker, CO 80134 USA).
The Extensible Messaging and Presence Protocol (XMPP) is defined in the XMPP Core (RFC 6120) and XMPP IM (RFC 6121) specifications contributed by the XMPP Standards Foundation to the Internet Standards Process, which is managed by the Internet Engineering Task Force in accordance with RFC 2026. Any protocol defined in this document has been developed outside the Internet Standards Process and is to be understood as an extension to XMPP rather than as an evolution, development, or modification of XMPP itself.
The primary venue for discussion of XMPP Extension Protocols is the <firstname.lastname@example.org> discussion list.
Discussion on other xmpp.org discussion lists might also be appropriate; see <http://xmpp.org/about/discuss.shtml> for a complete list.
Errata can be sent to <email@example.com>.
The following requirements keywords as used in this document are to be interpreted as described in RFC 2119: "MUST", "SHALL", "REQUIRED"; "MUST NOT", "SHALL NOT"; "SHOULD", "RECOMMENDED"; "SHOULD NOT", "NOT RECOMMENDED"; "MAY", "OPTIONAL".
16. The Internet Assigned Numbers Authority (IANA) is the central coordinator for the assignment of unique parameter values for Internet protocols, such as port numbers and URI schemes. For further information, see <http://www.iana.org/>.
17. The XMPP Registrar maintains a list of reserved protocol namespaces as well as registries of parameters used in the context of XMPP extension protocols approved by the XMPP Standards Foundation. For further information, see <https://xmpp.org/registrar/>.
Note: Older versions of this specification might be available at http://xmpp.org/extensions/attic/
Per a vote of the XMPP Council, changed status to Obsolete and referred implementors to XEP-0213 and XEP-0216.