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laforge, 10/21/2017 06:39 PM


OsmoMGW, the Osmocom Media Gateway, is a Media Gateway for handling user plane (voice) traffic in cellular networks.

OsmoMGW supports the IETF MGCP (Media Gateway Control Protocol) for control from Call Agents, such as those present in OsmoBSC and OsmoMSC.

At the moment (October 2017), OsmoMGW only implements RTP proxy / RTP bridge type endpoints, to each of which two RTP connections can be established.

We are planning to add endpoint types for
  • classic E1/T1 timeslots (64kBps alaw/ulaw)
  • classic E1/T1 16k sub-slots with TRAU frames for classic BTS support
  • announcement/playout end-points
  • conference endpoints

OsmoMGW is the generalized version of an earlier much more special-purpsoe implementation called osmo-bsc_mgcp.

Situation in a typical Osmocom cellular network

Use by OsmoBSC

Use byOsmoMSC

It is Planned to use OsmoMGW also from OsmoMSC like this:

User Manuals

We are working on a set of complete manuals for


  • Contact us via the openbsc@ mailing list, see [[Cellular Infrastructure:Mailing Lists]].
  • Contributions are welcome via [[Cellular Infrastructure:Gerrit]].
  • Git repository browser at

Updated by laforge over 4 years ago · 4 revisions

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