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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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Oliver Smith d02c8f72b1 contrib: integrate RPM spec 
Remove OpenSUSE bug report link, set version to @VERSION@, make it build
with CentOS 8 etc.

Related: OS#4550
Change-Id: I387b41b6c524cd3f6baad7e89b4b6b347d9998ac
 		2020-05-19 15:49:42 +02:00
contrib contrib: integrate RPM spec 2020-05-19 15:49:42 +02:00
debian Bump version: 1.3.1 → 1.4.0 2020-01-02 21:35:01 +01:00
doc debian: create -doc subpackage with pdf manuals 2019-05-29 12:14:22 +02:00
src logging from sofia: add missing newline 2019-12-17 13:52:21 +00:00
tests distcheck/tests: Add the referenced osmoappdesc.py for testing 2016-04-24 22:28:35 +02:00
.gitignore contrib: integrate RPM spec 2020-05-19 15:49:42 +02:00
.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 Fix DISTCHECK_CONFIGURE_FLAGS override 2018-12-04 15:32:11 +01:00
README.asciidoc Write down some of the limitations of the current setup 2016-03-26 16:31:00 +01:00
configure.ac contrib: integrate RPM spec 2020-05-19 15:49:42 +02:00
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.