MNCC further reading

Harald Welte laforge at
Mon Apr 15 19:12:13 UTC 2013

hi Max,

On Mon, Apr 15, 2013 at 06:35:23PM +0200, ☎ wrote:

> Could you advice me where to read more about MNCC protocol?

it is not a protocol, but an interface

> openbsc/openbsc/include/openbsc/mncc.h references ETSI TS 100 940 which indeed has a
> lot of variables like MNCC.RECALL.IND in call control diagrams - but where are the
> reference to actual protocol?

there is no protocol.  The Spec only defines a set of primitives and
possibly their parameters, but no encoding or no protocol.  This is
fairly standard for ETSI/3GPP specs that document internal interfaces
between layers of functional elements where no wire-protocol or vendor
inter-operability is required.

- Harald Welte <laforge at> 
"Privacy in residential applications is a desirable marketing option."
                                                  (ETSI EN 300 175-7 Ch. A6)

More information about the OpenBSC mailing list