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Max 30fb97aa43 transaction: drop meaningless ti_flag of trans_assign_trans_id() 
According to GSM 04.07, the TI flag takes one bit and can be
either of the following:

  '0'B - transaction is allocated by sender of a message,
  '1'B - transaction is allocated by receiver of a message.

Since we store transaction ID in gsm_trans structure, we also store
TI flag (as a part of transaction ID), which in this context means:

  '0'B - transaction is allocated by us (OsmoMSC),
  '1'B - transaction is allocated by some MS.

In 100% cases, trans_assign_trans_id() is used to assign transaction IDs
to transactions allocated by us (i.e. OsmoMSC) for MT connections. And
there is no need to use it for MO transactions, because they basically
already do contain a valid transaction ID assigned by the MS.

Change-Id: Ie11999900b1789652ee078d34636dcda1e137eb0
 		2019-02-15 02:19:24 +07:00
contrib contrib: fix makedistcheck with disabled systemd 2018-12-06 16:31:01 +00:00
debian debian: depend on libsctp-dev 2019-02-06 17:56:01 +00:00
doc build manuals moved here from osmo-gsm-manuals.git 2018-11-27 17:50:54 +01:00
include transaction: drop meaningless ti_flag of trans_assign_trans_id() 2019-02-15 02:19:24 +07:00
m4 move openbsc/* to repos root 2017-07-12 23:17:10 +00:00
src transaction: drop meaningless ti_flag of trans_assign_trans_id() 2019-02-15 02:19:24 +07:00
tests VLR tests: use msgb_eq_data_print() for comparison 2019-02-05 16:25:03 +00:00
.gitignore build manuals moved here from osmo-gsm-manuals.git 2018-11-27 17:50:54 +01:00
.gitreview update .gitreview to new repo url 2017-08-08 17:26:28 +02:00
.mailmap
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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 Fix DISTCHECK_CONFIGURE_FLAGS override 2018-12-04 15:37:37 +01:00
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
configure.ac configure.ac: Check for libsctp 2019-02-06 18:08:59 +00:00
git-version-gen git-version-gen: Don't check for .git directory 2018-07-24 18:05:46 +02:00
osmoappdesc.py doc/examples: add detailed cs7 config examples 2017-09-07 03:10:36 +02:00

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