---
name: "osmo-msc"
section: "1"
platform: "linux"
package: "osmo-msc"
version: "1.13.0+dfsg1-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/osmo-msc"
---

# osmo-msc(1)

osmo-msc

## NAME

OsmoMSC - osmo-msc

## SYNOPSIS

**osmo-msc**

## DESCRIPTION

OsmoMSC is the Osmocom implementation of a Mobile Switching Center (MSC). It implements the following interfaces:

    3GPP AoIP over M3UA or SUA towards BSCs, for example OsmoBSC, possibly via a STP like OsmoSTP\
     3GPP IuCS over M3UA or SUA towards RNCs or HNBGWs, for example OsmoHNBGW, possibly via a STP like OsmoSTP\
     Osmocom GSUP (alternative to SS7/TACP/MAP) towards an HLR such as OsmoHLR\
         Subscriber management\
         Supplementary Services (SS/USSD)\
         Short Message Service (SMS)\
         inter-MSC handover\
     SMPP v3.4 for external SMS entities (minimal SMSC is built-in)\
     MGCP for controlling an external Media Gateway like OsmoMGW\
     MNCC for external call-control handlers, such as osmo-sip-connector for SIP trunks\
     Osmocom VTY interface for configuration + introspection\
     Osmocom CTRL interface for programmatic access to internal state/configuration

⟨https://osmocom.org/projects/osmomsc/wiki⟩

## OPTIONS

- **-h** **--help**

  This text.

- **-d** option **--debug**=*DCC*:DMM:DRR:

  Enable debugging.

- **-D** **--daemonize**

  Fork the process into a background daemon.

- **-c** **--config-file** filename

  The config file to use.

**-s** **--disable-color**

- **-T** **--timestamp**

  Prefix every log line with a timestamp.

- **-V** **--version**

  Print the version of OsmoMSC.

- **-e** **--log-level** number

  Set a global loglevel.

### VTY reference generation:

- **--vty-ref-mode** MODE

  VTY reference generation mode (e.g. 'expert').

- **--vty-ref-xml**

  Generate the VTY reference XML output and exit.

OsmoMSC - Osmocom Circuit-Switched Core Network implementation
 Copyright © 2016 by sysmocom s.f.m.c. GmbH \<info@sysmocom.de\>
 Based on OsmoNITB:

-

  (C) 2008-2010 by Harald Welte \<laforge@gnumonks.org\>
   (C) 2009-2012 by Holger Hans Peter Freyther \<zecke@selfish.org\>

Contributions by Daniel Willmann, Jan L??bbe, Stefan Schmidt
 Dieter Spaar, Andreas Eversberg, Sylvain Munaut, Neels Hofmeyr

License AGPLv3+: GNU AGPL version 3 or later \<http://gnu.org/licenses/agpl-3.0.html\>
 This is free software: you are free to change and redistribute it.
 There is NO WARRANTY, to the extent permitted by law.

## SEE ALSO

⟨http://ftp.osmocom.org/docs/latest/osmomsc-usermanual.pdf⟩

⟨http://ftp.osmocom.org/docs/latest/osmomsc-vty-reference.pdf⟩

The full documentation for **OsmoMSC** is maintained as a Texinfo manual.  If the **info** and **OsmoMSC** programs are properly installed at your site, the command

-

  **info OsmoMSC**

should give you access to the complete manual.