Hi OpenBSC,
My company is working on integrating some BTS (Nokia Flexi ESMB) with Nokia packet Abis with OsmoBSC.
The Nokia packet Abis seems to be Nokia OML/RSL over SCTP/IUA (RFC 3057).
To get started, we have built a little stub that takes the incoming SCTP/IUA connection and carries out ASP_UP/ASP_ACTIVE handshake. After this handshake is complete, we see OML coming in from the BTS.
It seems that this OML is in a form that would be understood by "bts_nokia_site.c". So now we would like to continue the experiment by feeding the OML/RSL into a BTS configured in OsmoBSC as type "nokia_site".
Now the questions: 1. Is it possible to configure a BTS of type "nokia_site" to run Abis over a unix domain socket ? 2. Is there a better way to prototype this integration ?
PS: PCAP trace available on request
Best Regards, Michael Andersen