2.5.6 Peer to Peer Support for Session Initiation Protocol (p2p-sip)

NOTE: This charter is a snapshot of the 65th IETF Meeting in Dallas, TX USA. It may now be out-of-date.

Last Modified: 2006-02-16


Dean Willis <dean.willis@softarmor.com>

Real-time Applications and Infrastructure Area Director(s):

Jon Peterson <jon.peterson@neustar.biz>
Cullen Jennings <fluffy@cisco.com>

* The Real-time Applications and Infrastructure Area Directors were seated during the IETF 65.

Real-time Applications and Infrastructure Area Advisor:

Jon Peterson <jon.peterson@neustar.biz>

Mailing Lists:

General Discussion:
To Subscribe:

Description of Working Group:

The Draft Charter (see following text) contains a detailed description
of the proposed working group as well as references to the mailing
list and its archive. The constituency met in an ad-hoc fashion under
the auspices of the SIPPING working group at IETF 62, 63 64. Minutes
of those discussions are posted at:


Historically, the level of interest in this work gas been very high,
with more than 50 people attending the ad-hoc sessions despite their
unusual scheduling. There are existing drafts for use cases,
requirements, and two different solution approaches in the IETF
depository at the time of this request. Some of these documents have
been revised several times and are beginning to mature.

The most significant challenge the constituency has faced is narrowing
its focus to a scope that is manageable in an IETF working group. We
believe the following draft charter addresses that focus and has
strong consensus in the community.

Goals and Milestones:

No Current Internet-Drafts

No Request For Comments

Meeting Minutes


Agenda and Intro by Chairs
Use Cases by Bruce Lowekamp
Architecture Overview by David Bryan
Requirements by Henning Schulzrinne
Charter by Dean Willis
Middleboxes for P2PSIP by Martin Stiemerling
NATs by Philip Mathews
A P2P SIP Architecture by Eunsoo Shim
DHT Alternative by Rohan Mahy