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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 6fc496eba3 Use htonl, not ntohl before inet_ntoa() 
Change-Id: I805864759c287ad4e1d74e5f6ee16bf2d6a1b01f
 		2018-08-28 07:22:30 -04:00
contrib contrib: jenkins.sh: Disable doxygen in libosmocore build 2018-02-20 20:23:10 +01:00
debian debian/rules: Don't overwrite .tarball-version 2018-08-06 11:19:22 +02:00
doc/examples vty: Work on configuration of the MNCC to SIP gateway 2016-03-21 15:39:41 +01:00
src Use htonl, not ntohl before inet_ntoa() 2018-08-28 07:22:30 -04:00
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
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COPYING Initial commit for a MNCC to SIP gateway (and maybe auth GW too) 2016-03-21 09:54:37 +01:00
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README.asciidoc Write down some of the limitations of the current setup 2016-03-26 16:31:00 +01:00
configure.ac Logging: Log mncc_names in mncc_data() 2018-05-24 16:56:41 +02:00
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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.