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osmo-sip-connector
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MNCC<->SIP bridge; attaches to OsmoMSC to interface with external SIP VoIP telephony https://osmocom.org/projects/osmo-sip-conector
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Vadim Yanitskiy f3eb44f54b sip: use osmo_{enc,dec}_gcr() from libosmocore 
Change-Id: I46fa46fc79494d337f2f4657215b91c39207eea4
Depends: I06babb959fdc82f4e82d92260131d60c98b0abd2
Fixes: Id40d7e0fed9356f801b3627c118150055e7232b1
Related: OS#5164
 		2021-10-27 16:46:00 +03:00
contrib Bump version: 1.4.1.15-9484-dirty → 1.5.0 2021-02-23 13:42:08 +01:00
debian debian/control: remove dh-systemd build-depend 2021-09-01 16:07:07 +02:00
doc debian: create -doc subpackage with pdf manuals 2019-05-29 12:14:22 +02:00
src sip: use osmo_{enc,dec}_gcr() from libosmocore 2021-10-27 16:46:00 +03:00
tests distcheck/tests: Add the referenced osmoappdesc.py for testing 2016-04-24 22:28:35 +02:00
.gitignore .gitignore: Get rid of new autofoo tmp files 2021-02-02 16:42:12 +01:00
.gitreview Add git review config 2017-08-25 18:38:05 +02:00
COPYING Initial commit for a MNCC to SIP gateway (and maybe auth GW too) 2016-03-21 09:54:37 +01:00
Makefile.am Makefile.am: EXTRA_DIST: debian, contrib/*.spec.in 2020-05-22 13:46:54 +02:00
README.asciidoc Write down some of the limitations of the current setup 2016-03-26 16:31:00 +01:00
configure.ac Bump version: 1.4.1.15-9484-dirty → 1.5.0 2021-02-23 13:42:08 +01:00
git-version-gen Fix git-version-gen 2017-10-28 18:20:00 +02:00
osmoappdesc.py osmoappdesc.py: switch to python 3 2019-12-11 09:43:11 +01:00

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.