I have a problem with caller id between cisco and nortel
the integration was done thru SIP protocol
the internal calls between nortel and cisco the caller id is working fine
if the call comes thru E1 lines to nortel then to cisco the caller id disappeared although the caller id is working nortel well
the integration was done thru SIP protocol
the internal calls between nortel and cisco the caller id is working fine
if the call comes thru E1 lines to nortel then to cisco the caller id disappeared although the caller id is working nortel well