Osmocom Mobile Switching Centre
 
 
 
 
 
Go to file
Pau Espin 46de4aafa6 .gitignore: Ignore new autofoo tmp files
Change-Id: Ifb9dfe84575451fdfc9d059bab428da82b448107
2021-02-04 12:51:41 +01:00
contrib contrib/jenkins: don't build osmo-gsm-manuals 2021-01-13 13:17:28 +01:00
debian debian/control: Recommend installation of osmo-mgw 2020-11-07 17:42:53 +01:00
doc Support setting rt-prio and cpu-affinity mask through VTY 2020-08-20 08:44:20 +00:00
include Convert paging response timer into an osmocom own X4 timer 2020-09-26 21:45:09 +02:00
m4 move openbsc/* to repos root 2017-07-12 23:17:10 +00:00
src main: generate coredump and exit upon SIGABRT received 2020-11-25 18:51:06 +01:00
tests Convert paging response timer into an osmocom own X4 timer 2020-09-26 21:45:09 +02:00
.gitignore .gitignore: Ignore new autofoo tmp files 2021-02-04 12:51:41 +01:00
.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 manuals: generate vty reference xml at build time 2020-07-12 12:30:28 +00:00
README README update. Explain more what it is than just the history 2021-01-06 13:13:46 +01:00
README.vty-tests Remove obsolete ./configure option 2017-11-29 14:24:54 +00:00
TODO-RELEASE Use osmo_fd_*_{disable,enable} 2020-11-11 20:14:27 +00:00
configure.ac configure.ac: set -std=gnu11 2021-01-28 09:28:26 +00:00
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

About OsmoMSC
=============

OsmoMSC is an implementation of the 3GPP MSC (Mobile Switching Centre)
network element.  It implements the following core functionality within
the 2G (GSM) and 3G (UMTS) networks:

* 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)

Historically, 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
https://osmocom.org/projects/osmomsc
https://osmocom.org/projects/osmomsc/wiki