Media Gateway Control Protocol (MGCP) controls media gateways on IP networks that connect to the Public Switched Telephone Network. MGCP is, in essence, a master/slave protocol.

VOIP

There are various protocols

ftp: file transfer protocol

smtp: simple mail transfer protocol

pop3: post office protocol

ip: internet protocol

tcp: transmission control protocol

ospf: open shortest path first

igrp: interior gateway routing protocol

eigrp: enhanced interior gateway routing protocol

rip: routing information protocol

http: hyper text transfer protocol

udp: user datagram protocol

icmp: internet control message protocol

You could have a look at these:

Megaco H.248Gateway Control ProtocolMGCPMedia Gateway Control ProtocolMIMERVP over IPRemote Voice Protocol Over IP SpecificationSAPv2Session Announcement ProtocolSDPSession Description ProtocolSGCPSimple Gateway Control ProtocolSIPSession Initiation ProtocolSkinnySkinny Client Control Protocol (SCCP)

regards,

tesseract

bgp