Change in osmo-sip-connector[master]: MNCC v6: add optional SDP to the socket protocol

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neels gerrit-no-reply at lists.osmocom.org
Mon Nov 25 23:22:27 UTC 2019


neels has uploaded a new patch set (#2). ( https://gerrit.osmocom.org/c/osmo-sip-connector/+/16221 )

Change subject: MNCC v6: add optional SDP to the socket protocol
......................................................................

MNCC v6: add optional SDP to the socket protocol

Add the new SDP section to the MNCC socket protocol, but do not yet implement
forwarding SDP from SIP. Implementing SDP forwarding follows in a subsequent
patch.

It is still possible to establish a call with empty SDP: the new osmo-msc on
the MT side, receiving an MNCC_SETUP_REQ, will hit an error log:
"Got no information of remote audio codecs: neither SDP nor Bearer Capability.
Trying anyway."
and then hold thumbs to hit a codec match, analogous to previous behavior.

Note that osmo-sip-connector should actually always have encoded a Bearer
Capability in the MNCC protocol in the MT MNCC_SETUP_REQ message, but never
has. Now we are ready to leapfrog from zero codec info to full SDP.

This patch must be merged at the same time as osmo-msc patch
Ie16f0804c4d99760cd4a0c544d0889b6313eebb7, so that both sides have a matching
MNCC protocol version number.

Change-Id: Iaca9ed6611fc5ca8ca749bbbefc31f54bea5e925
---
M src/call.h
M src/mncc_protocol.h
2 files changed, 10 insertions(+), 1 deletion(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-sip-connector refs/changes/21/16221/2
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Gerrit-Project: osmo-sip-connector
Gerrit-Branch: master
Gerrit-Change-Id: Iaca9ed6611fc5ca8ca749bbbefc31f54bea5e925
Gerrit-Change-Number: 16221
Gerrit-PatchSet: 2
Gerrit-Owner: neels <nhofmeyr at sysmocom.de>
Gerrit-CC: Jenkins Builder
Gerrit-MessageType: newpatchset
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