Osmocom Mobile Switching Centre
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Neels Hofmeyr 620ba9369d configure: add --enable-werror 5 years ago
contrib jenkins.sh: Don't depend on osmo-ggsn 5 years ago
debian Migrate from OpenSSL to osmo_get_rand_id() 5 years ago
doc remove unused "auth policy" VTY command 5 years ago
include implement support for 3-digit MNC with leading zeros 5 years ago
m4 move openbsc/* to repos root 6 years ago
src cosmetic: vlr_auth_fsm: log RAN and size along with SRES/RES 5 years ago
tests msc_vlr_tests: add test_a5_3_not_supported 5 years ago
.gitignore Remove traces of meas_feed 5 years ago
.gitreview update .gitreview to new repo url 6 years ago
.mailmap add .mailmap file for mapping git author name/mail in shortlog 7 years ago
AUTHORS move openbsc/* to repos root 6 years ago
COPYING move openbsc/* to repos root 6 years ago
Makefile.am Remove unneeded .py scripts 5 years ago
README rewrite README 5 years ago
README.vty-tests Remove obsolete ./configure option 5 years ago
configure.ac configure: add --enable-werror 5 years ago
git-version-gen git-version-gen: look for .git in ./, not ../ 6 years ago
osmoappdesc.py doc/examples: add detailed cs7 config examples 5 years ago


About OsmoMSC

OsmoMSC originated from the OpenBSC project, which started as a minimalistic
all-in-one implementation of the GSM Network. In 2017, OpenBSC 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. Before, it was
the libmsc part of the old OsmoNITB. Since a true A interface and IuCS for 3G
support is available, OsmoMSC exists only as a separate standalone entity.

OsmoMSC exposes
- GSUP towards OsmoHLR (or a MAP proxy);
- A over IP towards a BSC (e.g. OsmoBSC);
- IuCS towards an RNC or HNB-GW (e.g. OsmoHNBGW) for 3G voice;
- MNCC (Mobile Network Call Control derived from GSM TS 04.07);
- SMPP 3.4 (Short Message Peer-to-Peer);
- The Osmocom typical telnet VTY and CTRL interfaces.

Find OsmoMSC issue tracker and wiki online at