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Osmocom Mobile Switching Centre
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Neels Hofmeyr b26715c60d add sdp_audio_codec_from_str(), for codec cfg 
We have sdp_audio_codec_to_str() in a pretty sane and compact format,
so far for logging. It occured to me that this format is fit for VTY
config arguments.

Add a string-back-to-codec conversion.

- enable testing AMR mode-set and octet-align in msc_vlr_test_call.c, by
  giving convenient codec strings parsed by this new function.

- enable VTY config options for codecs.

Change-Id: Ibf23a8888ab79d3b10b044383cd161f1dfdf7e63
 		2024-02-25 03:43:12 +01:00
contrib Bump version: 1.10.0.125-92caa-dirty → 1.11.0 2023-09-12 16:46:12 +02:00
debian Bump version: 1.11.0.7-dbe88 → 1.11.1 2023-09-28 13:53:08 +02:00
doc tweak example osmo-msc.cfg: 001 01 2024-02-08 23:42:17 +01:00
include add sdp_audio_codec_from_str(), for codec cfg 2024-02-25 03:43:12 +01:00
m4 Drop unneeded ax_check_compile_flag.m4 2022-01-11 18:11:41 +01:00
src add sdp_audio_codec_from_str(), for codec cfg 2024-02-25 03:43:12 +01:00
tests msc_vlr_test_call: more space for SDP 2024-02-25 03:43:12 +01:00
.gitignore Ignore .deb build byproducts 2022-08-01 13:53:37 +00:00
.gitreview update .gitreview to new repo url 2017-08-08 17:26:28 +02:00
.mailmap add .mailmap file for mapping git author name/mail in shortlog 2016-08-08 17:40:28 +00:00
AUTHORS move openbsc/* to repos root 2017-07-12 23:17:10 +00:00
COPYING move openbsc/* to repos root 2017-07-12 23:17:10 +00:00
Makefile.am build: include README.md into the release tarball 2024-01-26 23:36:01 +07:00
README.md Convert + Expand README file 2022-06-18 13:34:24 +02:00
README.vty-tests update git URLs (git -> https; gitea) 2022-06-18 12:27:10 +02:00
TODO-RELEASE SDP/MGCP: pass octet-align=1 for AMR / pass all fmtp 2024-02-09 05:17:39 +01:00
configure.ac Bump version: 1.10.0.125-92caa-dirty → 1.11.0 2023-09-12 16:46:12 +02:00
git-version-gen git-version-gen: Don't check for .git directory 2018-07-24 18:05:46 +02:00
osmoappdesc.py osmoappdesc.py, tests: switch to python 3 2019-12-12 09:29:19 +00:00

README.md

osmo-msc - Osmocom MSC Implementation

This repository contains a C-language implementation of a GSM Mobile Switching Centre (MSC) for 2G (GSM) and 3G (UMTS). It is part of the Osmocom Open Source Mobile Communications project.

OsmoMSC exposes

  • A over IP towards BSCs (e.g. OsmoBSC): 3GPP AoIP or SCCPlite
  • IuCS over IP towards RNCs / HNBGW (e.g. osmo-hnbgw)
  • The Osmocom typical telnet VTY and CTRL interfaces.
  • The Osmocom typical statsd exporter.

OsmoMSC implements

  • mobility management
  • call control (either via built-in MNCC handler or external osmo-sip-connector)
  • USSD (exposed via GSUP)
  • SMS (either via built-in SMSC or external via GSUP)

Homepage

You can find the OsmoMSC issue tracker and wiki online at https://osmocom.org/projects/osmomsc and https://osmocom.org/projects/osmomsc/wiki.

GIT Repository

You can clone from the official osmo-msc.git repository using

    git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-msc

There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-msc

Documentation

User Manuals and VTY reference manuals are [optionally] built in PDF form as part of the build process.

Pre-rendered PDF version of the current "master" can be found at User Manual as well as the VTY Reference Manual

Mailing List

Discussions related to osmo-msc are happening on the openbsc@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/openbsc for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.

Contributing

Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards

We us a gerrit based patch submission/review process for managing contributions. Please see https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit for more details

The current patch queue for osmo-msc can be seen at https://gerrit.osmocom.org/#/q/project:osmo-msc+status:open

History

OsmoMSC originated from the OsmoNITB project, which started as a minimalistic all-in-one implementation of the GSM Network. In 2017, OsmoNITB had reached maturity and diversity (including M3UA SIGTRAN and 3G support in the form of IuCS and IuPS interfaces) that naturally lead to a separation of the all-in-one approach to fully independent separate programs as in typical GSM networks.

OsmoMSC was one of the parts split off from the old openbsc.git.