cellular-infrastructure
/
osmo-sip-connector
mirror of https://gerrit.osmocom.org/osmo-sip-connector
9
0
Fork 0
Code Issues Releases Wiki Activity
MNCC<->SIP bridge; attaches to OsmoMSC to interface with external SIP VoIP telephony https://osmocom.org/projects/osmo-sip-conector
89 Commits 27 Branches 14 Tags 1.7 MiB
C 86.7%
Shell 5.7%
M4 4.5%
Makefile 1.4%
Dockerfile 0.9%
Other 0.8%
Go to file
Holger Hans Peter Freyther 3d9ae085bf sip: Actually honor the remote port of the pbx 
So far the remote_port has never been used. sofia-sip did the right
thing and put the port into the "Contact" and the rport option for
the via. But we would have never been able to connect a PBX on a
different port (as sofia-sip seems to parse the destination from the
to address).

Change-Id: Ifbd49b4aa6b01b118fe67e39dddef50b2946159c
 		2017-03-23 07:32:04 +00:00
contrib testpbx: Enable GSM and AMR as codecs to actually be relevant 2017-03-23 07:31:25 +00:00
debian debian: Add dh-autoreconf required by the debian packaging 2016-03-31 20:04:54 +02:00
doc/examples vty: Work on configuration of the MNCC to SIP gateway 2016-03-21 15:39:41 +01:00
src sip: Actually honor the remote port of the pbx 2017-03-23 07:32:04 +00:00
tests distcheck/tests: Add the referenced osmoappdesc.py for testing 2016-04-24 22:28:35 +02:00
.gitignore Initial commit for a MNCC to SIP gateway (and maybe auth GW too) 2016-03-21 09:54:37 +01:00
COPYING Initial commit for a MNCC to SIP gateway (and maybe auth GW too) 2016-03-21 09:54:37 +01:00
Makefile.am distcheck/tests: Add the referenced osmoappdesc.py for testing 2016-04-24 22:28:35 +02:00
README.asciidoc Write down some of the limitations of the current setup 2016-03-26 16:31:00 +01:00
configure.ac configure: check for pkg-config presence 2016-10-01 01:07:11 +02:00
git-version-gen Initial commit for a MNCC to SIP gateway (and maybe auth GW too) 2016-03-21 09:54:37 +01:00
osmoappdesc.py distcheck/tests: Add the referenced osmoappdesc.py for testing 2016-04-24 22:28:35 +02:00

README.asciidoc 

Osmo SIP Connector
==================

Simple utility to map MNCC to SIP and SIP to MNCC. The VTY interface
can be used to make configurations. The code doesn't have any RTP or
transcoding support.

Call identities can be either the MSISDN or the IMSI of the subscriber.


Requirements of Equipment
^^^^^^^^^^^^^^^^^^^^^^^^^

* DTMF need to be sent using SIP INFO messages. DTMF in RTP is not
supported.

* BTS+PBX and SIP connector+PBX  must be in the same network (UDP must be
able to flow directly between these elements)

* No handover support.

* IP based BTS (e.g. Sysmocom sysmoBTS but no Siemens BS11)

* No emergency calls

Limitations
^^^^^^^^^^^

* PT of RTP needs to match the one used by the BTS. E.g. AMR needs to use
the same PT as the BTS. This is because rtp_payload2 is not yet supported
by the osmo-bts software.

* AMR SDP file doesn't include the mode-set params and allowed codec modes.
This needs to be configured in some way.