Branch Gateway provides voice services over IP data networks using VoIP. VoIP is a group of protocols for transmitting and receiving various types of voice data over an IP network. VoIP includes protocols for transmitting and receiving the following types of information:
Digitally encoded voice data
Call signalling information
Call routing information
QoS information
VoIP uses the RTP and RTCP protocols to transmit and receive digitally encoded voice data.
You can use many types of telephones and trunks that do not directly support VoIP. Branch Gateway translates voice and signalling data between VoIP and the system used by the telephones and trunks.
