From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: mmusic@ietf.org
Subject: WG Review: Multiparty Multimedia Session Control (mmusic)
The Multiparty Multimedia Session Control (mmusic) WG in the Applications and
Real-Time Area of the IETF is undergoing rechartering. The IESG has not made
any determination yet. The following draft charter was submitted, and is
provided for informational purposes only. Please send your comments to the
IESG mailing list (iesg@ietf.org) by 2019-02-05.
Multiparty Multimedia Session Control (mmusic)
-----------------------------------------------------------------------
Current status: Active WG
Chairs:
Flemming Andreasen <fandreas@cisco.com>
Bo Burman <bo.burman@ericsson.com>
Assigned Area Director:
Ben Campbell <ben@nostrum.com>
Applications and Real-Time Area Directors:
Adam Roach <adam@nostrum.com>
Ben Campbell <ben@nostrum.com>
Alexey Melnikov <aamelnikov@fastmail.fm>
Mailing list:
Address: mmusic@ietf.org
To subscribe: https://www.ietf.org/mailman/listinfo/mmusic
Archive: https://mailarchive.ietf.org/arch/browse/mmusic/
Group page: https://datatracker.ietf.org/group/mmusic/
Charter: https://datatracker.ietf.org/doc/charter-ietf-mmusic/
The Multiparty MUltimedia SessIon Control (MMUSIC) Working Group was
originally chartered to develop protocols to support Internet
teleconferencing and multimedia communications. These protocols are now
reasonably mature, and many have received widespread deployment. Currently,
the group is focused on using and negotiating media streams with the Session
Description Protocol (SDP), which is used as a common protocol to express
media and session descriptions. The group also maintains the Real-time
Streaming Protocol (RTSP) and Interactive Connectivity Establishment (ICE)
specifications.
The protocols have been revised in the light of implementation experience and
additional demands that have arisen from other WGs (such as AVTCORE, CLUE,
ICE, and RTCWEB). In particular, the many uses of SDP have led to requests
for numerous extensions as well as a recognition of several limitations in
the original protocol design. Today, the SDP protocol is widely deployed and
continues to see extensions being defined.
The current aims of the working group include the following:
- Provide SDP signaling support for the Interactive Connectivity
Establishment (ICE) protocol and its extensions.
- To support the establishment of multi-party multimedia sessions for RTCWEB
based implementations, MMUSIC provides SDP signaling support for a number of
extensions required by RTCWEB. The MMUSIC WG will seek a balanced trade-off
between general applicability of such extensions versus RTCWEB specific usage.
- Various other extensions to SDP may be pursued to remedy the most urgent of
SDP's shortcomings. These include updates to the SDP specification itself and
missing IANA registrations.
- Maintain the specification of the (revised) Real Time Streaming Protocol
(RTSP) as needed.
- Maintain the specifications of the Interactive Connectivity Establishment
(ICE) and specify extensions to it with demonstrated interest and value.
- With the exception of the items listed above, only extensions within the
existing SDP framework will be done.
The MMUSIC work items will be pursued in close coordination with other IETF
WGs including AVTCORE, CLUE, RTCWEB, and SIPCORE, as well as others where
appropriate.
Milestones:
WG action announcement
WG Action Announcement
From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: mmusic-chairs@ietf.org,
mmusic@ietf.org,
The IESG <iesg@ietf.org>
Subject: WG Action: Rechartered Multiparty Multimedia Session Control (mmusic)
The Multiparty Multimedia Session Control (mmusic) WG in the Applications and
Real-Time Area of the IETF has been rechartered. For additional information,
please contact the Area Directors or the WG Chairs.
Multiparty Multimedia Session Control (mmusic)
-----------------------------------------------------------------------
Current status: Active WG
Chairs:
Flemming Andreasen <fandreas@cisco.com>
Bo Burman <bo.burman@ericsson.com>
Assigned Area Director:
Ben Campbell <ben@nostrum.com>
Applications and Real-Time Area Directors:
Adam Roach <adam@nostrum.com>
Ben Campbell <ben@nostrum.com>
Alexey Melnikov <aamelnikov@fastmail.fm>
Mailing list:
Address: mmusic@ietf.org
To subscribe: https://www.ietf.org/mailman/listinfo/mmusic
Archive: https://mailarchive.ietf.org/arch/browse/mmusic/
Group page: https://datatracker.ietf.org/group/mmusic/
Charter: https://datatracker.ietf.org/doc/charter-ietf-mmusic/
The Multiparty MUltimedia SessIon Control (MMUSIC) Working Group was
originally chartered to develop protocols to support Internet
teleconferencing and multimedia communications. These protocols are now
reasonably mature, and many have received widespread deployment. Currently,
the group is focused on using and negotiating media streams with the Session
Description Protocol (SDP), which is used as a common protocol to express
media and session descriptions. The group also maintains the Real-time
Streaming Protocol (RTSP) and Interactive Connectivity Establishment (ICE)
specifications.
The protocols have been revised in the light of implementation experience and
additional demands that have arisen from other WGs (such as AVTCORE, CLUE,
ICE, and RTCWEB). In particular, the many uses of SDP have led to requests
for numerous extensions as well as a recognition of several limitations in
the original protocol design. Today, the SDP protocol is widely deployed and
continues to see extensions being defined.
The current aims of the working group include the following:
- Provide SDP signaling support for the Interactive Connectivity
Establishment (ICE) protocol and its extensions.
- To support the establishment of multi-party multimedia sessions for RTCWEB
based implementations, MMUSIC provides SDP signaling support for a number of
extensions required by RTCWEB. The MMUSIC WG will seek a balanced trade-off
between general applicability of such extensions versus RTCWEB specific usage.
- Various other extensions to SDP may be pursued to remedy the most urgent of
SDP's shortcomings. These include updates to the SDP specification itself and
missing IANA registrations.
- Maintain the specification of the (revised) Real Time Streaming Protocol
(RTSP) as needed.
- Maintain the specifications of the Interactive Connectivity Establishment
(ICE) and specify extensions to it with demonstrated interest and value.
- With the exception of the items listed above, only extensions within the
existing SDP framework will be done.
The MMUSIC work items will be pursued in close coordination with other IETF
WGs including AVTCORE, CLUE, RTCWEB, and SIPCORE, as well as others where
appropriate.
Milestones: