Packet switching apparatus including cascade ports and...

Packet switching apparatus with multi-channel and multi-cast swi

Packet telephony across the public switched telephone network

Packet telephony appliance

Packet telephony appliance

Packet telephony power management

Packet traffic management apparatus, systems, and methods

Packet transport method device utilizing header removal fields

Packet voice network border control

Packet voice telephony system and method

Packet-based calls in a wireless network

Packet-based dynamic de-skewing for network switch with local or

Packet-based video network indicating video signal...

Packet-switched telephony call server

Packet-switched telephony with circuit-switched backup

Packet-switched telephony with circuit-switched backup

Packetized communications apparatus and method

Page-mode messaging

Parallel data transfer and synchronization in...

PBX with short messaging service on a telephone display