http://www.rfc-editor.org/rfc/rfc3054.txt
RFC 3054: Megaco IP Phone Media Gateway Application Profile, P. Blatherwick, R. Bell, P. Holland2001-01-01T23:00:00-00:00This document specifies a particular application of the Megaco/H.248 Protocol for control of Internet telephones and similar appliances: the Megaco IP Phone Media Gateway. This memo provides information for the Internet community.