osmo-msc

History

Harald Welte ed04fcc179 rtp_proxy.c: Ensure msgb_alloc is large enough for largest AMR frame In AMR 12.2 (mode 7), the actual RTP payload is 33 bytes. Howeerver, as we store the length of the (dynamically-sized) AMR payload in the first byte, our buffer needs at least 33+1 byte in size. Change-Id: If1ad5d2d68c85733306c75ea62f67fe8fbc143b3 Reviewed-on: https://gerrit.osmocom.org/91 Tested-by: Jenkins Builder Reviewed-by: Harald Welte <laforge@gnumonks.org>		2016-05-25 12:33:47 +00:00
..
contrib	nat/ussd: Add an example of the USSD gateway side-channel	2016-04-16 15:56:13 -04:00
doc	Move DTX settings to BTS	2016-05-17 16:17:54 +00:00
include	Make extending subscriber creation easier	2016-05-20 16:32:37 +00:00
src	rtp_proxy.c: Ensure msgb_alloc is large enough for largest AMR frame	2016-05-25 12:33:47 +00:00
tests	drop unneccessary duplicate linking: tests/gsm0408	2016-05-22 10:46:42 +00:00
tools	hlrstat: Print numeric MCC/MNC in case no name is available	2010-01-01 15:08:38 +01:00
.gitignore	Ignore extended test leftovers	2016-05-12 12:24:23 +00:00
AUTHORS	AUTHORS: Add Jacob and Neels	2015-12-05 23:04:11 +01:00
COPYING	License change: We are now AGPLv3+ instead of GPLv2+	2011-01-01 15:39:34 +01:00
Makefile.am	Fix "make distcheck"	2015-06-19 20:57:48 +02:00
README	openbsc/README: some fixes, add CSCN and Iu*	2016-01-28 13:36:07 +01:00
README.vty-tests	Add README.vty-tests	2016-01-28 13:36:07 +01:00
configure.ac	Add MM Auth test; add auth_action_str() function	2016-03-31 11:56:00 +02:00
git-version-gen	automatically include program version and print it from vty and --version	2010-03-23 00:09:32 +08:00
openbsc.pc.in	Install gsm_04_08.h and required headers into a openbsc/	2010-02-16 17:51:42 +01:00
osmoappdesc.py	gtphub: Fix the VTY prompt to make the tests move forward	2015-12-14 15:24:50 +01:00

README

About OpenBSC
=============

OpenBSC started as a minimalistic all-in-one implementation of the GSM Network,
with particular emphasis on the functionality typically provided by the BSC,
MSC, HLR, VLR and SMSC.  Today it is a growing suite of libraries and programs,
implementing protocol stacks and functional elements, including

 * OsmoBSC - a pure GSM BSC, speaking Abis/IP to the BTS and A/IP to the MSC
 * OsmoBSC-MGCP - MGCP helper to the OsmoBSC software
 * OsmoNITB - a BSC+MSC+VLR+HLR+SMSC "Network in the box".
 * OsmoCSCN - a voice CN with A/IP and IuCS/IP towards the BSC and/or HNB-GW
 * OsmoSGSN - a GPRS SGSN with Gb/IP and IuPS/IP towards the PCU and/or HNB-GW
 * Osmo-GbProxy - a Proxy to aggregate many Gb links as one Gb link to the SGSN
 * OsmoBSCNAT - a gateway aggregating many A links as one A link to the MSC
 * OsmoGTPHUB - a hub aggregating many GTP links (between SGSN and GGSN)
 * ipaccess-utils - some tools to discover + configure ip.access nanoBTS
 * bs11_config - a tool to configure the Siemens BS-11 microBTS

Various interfaces towards the BTS are supported, among which are:

 * Classic A-bis over E1 using a mISDN based E1 interface. In other
   words, you can connect existing GSM Base Transceiver Station (BTS)
   through E1 to OpenBSC.  So far, we have made it work with the Siemens BS-11,
   various Ericsson RBS2xxx BTS models and the Nokia MetroSite.

 * A-bis over IP as used by the ip.access nanoBTS product family as well as
   the Open Source OsmoBTS software (by the same authors as OpenBSC).  OsmoBTS
   in turn supports various transceiver hardware, including the sysmoBTS
   product family, as well as SDR transceivers supported by OsmoTRX, such as
   the UmTRX or USRP boardss.

 * IuCS and IuPS over IP towards an HNB-GW (see osmo-iuh) for UMTS (3G)
   voice and data links.

Find OpenBSC online at
http://openbsc.osmocom.org/

	Harald Welte <laforge@gnumonks.org>