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Osmocom Mobile Switching Centre
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Oliver Smith 18bc06eeb6 csd_bs_list_to_gsm0808_channel_type: add T 300 
There is no GSM0808_DATA_RATE_TRANSP_300 (not in libosmocore and not in
3GPP TS 48.008 § 3.2.11 on which the enum is based). As I understand it,
we need to use GSM0808_DATA_RATE_TRANSP_600 and half rate TCH.

As pointed out in review, either TCH/H2.4 or TCH/F2.4 would work, so
use GSM0808_DATA_FULL_PREF. It was also considered using FULL_PREF for
other rates below 9600, but while it is technically possible we are not
setting it here as TCH/F provides so much more redundancy and hence
robustness.

Use GSM0808_DATA_FULL_BM instead of GSM0808_SPEECH_FULL_BM. The value is
0x8 for both, but this is the correct name.

Related: OS#4394
Change-Id: I7297cc481fbe36355b5231ca800cf566a1ee93c0
 		2023-07-18 09:45:46 +02:00
contrib fixup: contrib/jenkins: create workspace.tar.xz on error 2023-05-28 03:04:51 +07:00
debian debian: set compat level to 10 2023-04-25 16:48:30 +02:00
doc Write explicit role & sctp-role fields in ASP configurations 2023-06-08 19:39:13 +02:00
include ASCI: Add call control for VGCS/VBS 2023-07-17 12:29:42 +00:00
m4 Drop unneeded ax_check_compile_flag.m4 2022-01-11 18:11:41 +01:00
src csd_bs_list_to_gsm0808_channel_type: add T 300 2023-07-18 09:45:46 +02:00
tests csd_bs_list_remove: fix removal logic 2023-07-10 07:03:29 +00:00
.gitignore Ignore .deb build byproducts 2022-08-01 13:53:37 +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.md Convert + Expand README file 2022-06-18 13:34:24 +02:00
README.vty-tests update git URLs (git -> https; gitea) 2022-06-18 12:27:10 +02:00
TODO-RELEASE Use new mgcp_client_conf_alloc() API to alloc mgcp_client_conf 2023-06-14 14:09:11 +02:00
configure.ac test: add csd_test 2023-07-10 07:02:59 +00:00
git-version-gen git-version-gen: Don't check for .git directory 2018-07-24 18:05:46 +02:00
osmoappdesc.py osmoappdesc.py, tests: switch to python 3 2019-12-12 09:29:19 +00:00

README.md

osmo-msc - Osmocom MSC Implementation

This repository contains a C-language implementation of a GSM Mobile Switching Centre (MSC) for 2G (GSM) and 3G (UMTS). It is part of the Osmocom Open Source Mobile Communications project.

OsmoMSC exposes

  • A over IP towards BSCs (e.g. OsmoBSC): 3GPP AoIP or SCCPlite
  • IuCS over IP towards RNCs / HNBGW (e.g. osmo-hnbgw)
  • The Osmocom typical telnet VTY and CTRL interfaces.
  • The Osmocom typical statsd exporter.

OsmoMSC implements

  • 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)

Homepage

You can find the OsmoMSC issue tracker and wiki online at https://osmocom.org/projects/osmomsc and https://osmocom.org/projects/osmomsc/wiki.

GIT Repository

You can clone from the official osmo-msc.git repository using

    git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-msc

There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-msc

Documentation

User Manuals and VTY reference manuals are [optionally] built in PDF form as part of the build process.

Pre-rendered PDF version of the current "master" can be found at User Manual as well as the VTY Reference Manual

Mailing List

Discussions related to osmo-msc are happening on the openbsc@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/openbsc for subscription options and the list archive.

Please observe the Osmocom Mailing List Rules when posting.

Contributing

Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards

We us a gerrit based patch submission/review process for managing contributions. Please see https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit for more details

The current patch queue for osmo-msc can be seen at https://gerrit.osmocom.org/#/q/project:osmo-msc+status:open

History

OsmoMSC originated from the OsmoNITB project, which started as a minimalistic all-in-one implementation of the GSM Network. In 2017, OsmoNITB 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.