MNCC<->SIP bridge; attaches to OsmoMSC to interface with external SIP VoIP telephony
https://osmocom.org/projects/osmo-sip-conector
Harald Welte
6369f30c4d
sofia-sip allows applications to register a log backend function which will be called every time the library wants to log something. We register such a call-back and make it log using the libosmocore logging framework. The problem is that sofia-sip has its own log level management, and by the time the message hits libosmocore, we don't know which log level we shall use :( Change-Id: Ib269b6b50f9d79bbd13acc43a626834921f05edb Related: OS#3105 |
||
|---|---|---|
| contrib | ||
| debian | ||
| doc/examples | ||
| src | ||
| tests | ||
| .gitignore | ||
| .gitreview | ||
| COPYING | ||
| Makefile.am | ||
| README.asciidoc | ||
| configure.ac | ||
| git-version-gen | ||
| osmoappdesc.py | ||
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.