Osmocom Mobile Switching Centre
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Neels Hofmeyr 0e6185b079 CC: fix sanity expectations for call establishment
Recent 'add full SDP codec information to the MNCC...' patch has added a strict
CC state sanity check, which is too strict:

In tests with 200 concurrent calls, situations came up where the MNCC is faster
than the Abis in establishing a call. If that happens, the CC state machine is
already in GSM_CSTATE_ACTIVE when the RR channel assignment completes.

Also allow GSM_CSTATE_ACTIVE state for accepting an Assignment Complete.

Change-Id: I0e0767ec10232615bbf063181fc7f8738ef94f28
2020-11-30 16:46:52 +01:00
contrib contrib/jenkins: Enable parallel make in make distcheck 2020-10-12 19:37:24 +02:00
debian debian/control: Recommend installation of osmo-mgw 2020-11-07 17:42:53 +01:00
doc add full SDP codec information to the MNCC socket 2020-11-30 16:46:52 +01:00
include add full SDP codec information to the MNCC socket 2020-11-30 16:46:52 +01:00
m4 move openbsc/* to repos root 2017-07-12 23:17:10 +00:00
src CC: fix sanity expectations for call establishment 2020-11-30 16:46:52 +01:00
tests add full SDP codec information to the MNCC socket 2020-11-30 16:46:52 +01:00
.gitignore contrib: integrate RPM spec 2020-05-20 08:50:18 +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 manuals: generate vty reference xml at build time 2020-07-12 12:30:28 +00:00
README rewrite README 2017-09-06 16:33:41 +02:00
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 Support setting rt-prio and cpu-affinity mask through VTY 2020-08-20 08:44:20 +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 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