This is the legacy all-in-one implementation of the Osmocom BSC + MSC + HLR, instead refer to OsmoBSC, OsmoMSC, OsmoHLR.

This is a project aiming to create a Free Software, (A)GPL-licensed software implementations for the GSM/3GPP protocol stacks and elements.

Binary Packages

Osmocom provides binary packages for several flavors of Debian and Ubuntu GNU/Linux on a variety of architectures (i586, x86_64, armhf, armv7l). Unless you are a software developer interested in developing on Osmocom, it is recommended you use those packages instead of building from source.

For more details see Binary_Packages


Osmocom maintains a set of user manuals and VTY reference manuals whose latest versions can be found at

If the manual for the program of your particular interest area is missing or you find it incomplete, we kindly ask you for your contribution in form of patches against (or, alternatively Funding)

Contact / Getting Help

The Osmocom community primarily communicates using public Mailing_Lists. Feel free to subscribe the list related to the project of your interest and join the discussions there. Some community members also hang out on the #omsocom IRC_Channel.

For commercial support services, please contact sysmocom.

Issue tracking

open closed Total
Bug 21 66 87
Feature 4 66 70
Support 1 3 4

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Latest news

Lab Update: OsmoMSC Serves 2G + 3G for the First Time
Added by neels 9 months ago

3G Voice Works (2 comments)
How to make a 3G voice call with Open Source software -- an update on Osmocom's Iu capabilities
Added by neels over 1 year ago

OsmoDevCon from March 27 through March 30, 2015
Added by laforge about 2 years ago

Status Report on Osmocom's 3G Support
Added by laforge about 2 years ago

Osmocom Berlin Meeting / 2015-12-09
Added by laforge over 2 years ago

View all news