Help: H.248/MGCP protocol vs SIP for SS7 interworking
Hi,
I am trying to explain something to myself so I'd appreciate someone shed
some light on this ...
Suppose we have softswitch (SS) with media gateway (MG) and signalling
gateway (SG). I.e call is coming from PSTN and ISUP IAM message is coming
via signalling link to SG.
Inside that ISUP message there is CIC (Circuit Identification Code) saying
which channel will be used on specific E1 link ..
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