Megaco (a contraction of "Media Gateway Controller") is a signalling protocol, used between a Media Gateway and a Media Gateway Controller (also known as a Call Agent or a Soft Switch) in a VOIP network. It will allow conversion of FAX, voice, and other multimedia communications between a public telephone network and IP networks.

This protocol is defined by IETF RFC 3525 and was the result of joint work of IETF and ITU. It is also known as H.248. H.248 is the name given to it by the ITU, Megaco is the IETF name.

See also

• H.248 Information Site This site provides information related to H.248, including pointers to standards and draft specifications