osmo-msc

The Mobile Switching Center (MSC) is the heart of 2G/3G
circuit-switched services.  It terminates the A-interface links from the
Base Station Controllers (BSC) and handles the MM and CC sub-layers of
the Layer 3 protocol from the phones (MS).
This Osmocom implementation of the MSC handles A interfaces via 3GPP
AoIP in an ASP role.  It furthermore implements IETF MGCP against an
external media gateway, such as OsmoMGW.  It does not implement MAP
towards a HLR, but the much simpler Osmocom GSUP protocol, which can
be translated to MAP if needed.

          

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License: AGPL-3.0-or-later AND GPL-2.0-only
URL: https://osmocom.org/projects/osmomsc/wiki