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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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Keith Whyte 8c0f6d2f75 Allow GSM340_PLAN_UNKNOWN on MNCC originated leg. 
Allows dialing of numbers with GSM340_PLAN_UNKNOWN,
for example a number beginning with '*'

Change-Id: I8d71cac5b169e3b19675b9b9626e6993f3acd979
 		2018-11-12 17:07:06 +01:00
contrib Install systemd services with autotools 2018-09-10 16:09:56 +02:00
debian Install sample cfg file to /etc/osmocom 2018-09-12 20:29:17 +02:00
doc Fix mncc socket name 2018-10-05 13:49:31 +02:00
src Allow GSM340_PLAN_UNKNOWN on MNCC originated leg. 2018-11-12 17:07:06 +01:00
tests distcheck/tests: Add the referenced osmoappdesc.py for testing 2016-04-24 22:28:35 +02:00
.gitignore Use release helper from libosmocore 2017-08-26 05:56:55 +00:00
.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 Install sample cfg file to /etc/osmocom 2018-09-12 20:29:17 +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.ac: add --enable-sanitize 2018-11-05 05:15:19 +01:00
git-version-gen Fix git-version-gen 2017-10-28 18:20:00 +02:00
osmoappdesc.py osmoappdesc: Fix VTY prompt to use OsmoSIPcon, not old OsmoMNCC 2018-03-27 15:51:02 +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.