The two-way transmission of voice over a packet-switched IP network, which is part of the TCP/IP protocol suite. The terms "IP telephony" and "voice over IP" (VoIP) are synonymous. However, the ...

Hub Network hubs provide a central location for attaching wires to workstations. They can be passive or active. Passive hubs do not amplify signals. Active hubs are used like repeaters to extend the ...

VoIP and IP telephony allows PC users to make phone calls over the Internet or other packet networks via gateways and standard telephones. VoIP is an abbreviation for voice over Internet protocol.

The codes and commands used to establish and terminate a phone call over an IP network. The protocol supports ... The primary IP telephony signaling protocols are H.323, SIP and MGCP/MEGACO.