I always used PBX to cisco sip trunking without registration, with VoIP calls passing both direction in "blind" mode.
Can routers like 1751 or 1760 act as registrar servers in a telephony service provider fashioned way ?
My pbx sip trunk allow only registration to a sip registrar server to be able to place and receive calls.
I need to use a 1751 as SIP to ISDN gateway for this pbx , can I configure this router to accept sip registration request ?
If yes , do you know a basic documentation about to starting from ??
Thank you very much.
