A system and method for providing caller ID in a multi-region cable
network. Caller identifying (CID) information of an incoming VoIP call is
provided to a digital telephone subscriber through a video termination
device (VTD) using a path that is different from the path by which the
VoIP call packets are delivered to the digital telephone subscriber. The
telephone number of a digital telephone subscriber is associated with the
IP address and/or MAC address of the subscriber's VTD. The called number
of the incoming VoIP call is used to select the VTD to which the CID
information is delivered. A message is then sent through an out-of-band
to the digital telephone subscriber's VTD comprising the CID information
for display on video display equipment. Alternatively, the VTD is
DOCSIS-compliant and a message is addressed to the VTD using the IP
address of the VTD DOCSIS modem.