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7 commits

Author SHA1 Message Date
Evangelos Ribeiro Tzaras
8b126484cb sip: Use per origin IP instead of a global IP
Sofia detects a NAT by presence of the "received" parameter in the Via header in
the response to a REGISTER. Sofia will then update the Contact header to use the
IP as reported by the registrar.

The "received" parameter MUST be included in the response according to
https://datatracker.ietf.org/doc/html/rfc3261#section-18.2.1
when the registrar detects a difference between the domain part of the top Via
header and the packet source address but practice has shown that this will not
always be the case.

Addditionally this change allows us to have origins bound to different network
interfaces which would be useful when a registrar can only be accessed through a
VPN.

This also fixes an issue with SDP introduced in
36880c3d34 which was only seen on some SIP
providers:

The session name ("s=") line is not relevant for establishing a connection,
the connection data (c=") line is.

See https://datatracker.ietf.org/doc/html/rfc4566 section 5.3 and 5.7
2022-01-08 21:25:09 +00:00
Evangelos Ribeiro Tzaras
c2bd6e9344 sip: media: rework codec negotiation
introduce `calls_sip_media_manager_get_capabilities ()` which takes
a GList of MediaCodecInfo's as input to generate a SDP message.
If using in an SDP answer we simply feed it a list of the common codecs
as gathered from the SDP offer.
2021-04-12 08:38:24 +00:00
Evangelos Ribeiro Tzaras
4eb07148cc sip: call: rename setup local/remote connection functions
Avoid ambiguity by renaming the functions. `setup_local_media ()`
could give the impression that we're setting up media codecs which
is not the case.
2021-04-12 08:38:24 +00:00
Mohammed Sadiq
c30a41ffa9 Let calls-call be an abstract class
And adapt to changes.

A calls-mm-call IS-A calls-call (and so on)
2021-04-05 09:38:03 +05:30
Evangelos Ribeiro Tzaras
e0482fc6e6 sip: initial call handling
* implement answering and hangup
 * (de)activate media pipeline
2021-04-03 00:08:31 +02:00
Evangelos Ribeiro Tzaras
967f30d688 sip: Add media manager and sipify origin
* pipeline: we should bind the used socket of our udpsink to the socket udpsrc
2021-04-03 00:08:31 +02:00
Evangelos Ribeiro Tzaras
71e7a33626 sip: Initial provider
based on dummy provider
2021-04-03 00:08:31 +02:00