Cisco Systems NM-HD-1V= VoIP Voice Fax Module
Product Description
voip systems: The Cisco IP Communications voice/fax network modules provide
enterprises, managed service providers, and service providers the ability to directly connect the public switched telephone network (PSTN) and traditional telephony equipment (private branch exchange (PBX0, key system, analog telephones, fax machines, etc.) to existing Cisco voice gateway routers.