Cisco has unwrapped a high-end, 51.2 Tbps router and chip that it says will go a long way toward supporting the distributed ...

Cisco Systems introduced a new high-capacity routing system and networking chip designed to connect data centers handling ...

For those who don't need videoconferencing and just want to use their broadband connections for voice communications, Vonage offers a compelling alternative. Vonage is a combination of a service and ...

Got a Cisco ATA 196 VoIP adapter. However it does not have the SIP protocol installed. Need advice on how to get the firmware needed to upgrade to SIP and how to do it. I'm aware that TFTP is involved ...