Mobile Internet telephony protocol: an application layer protocol for mobile Internet telephony services

Internet telephony realizes the transmission of two-way, real-time, synchronous traffic over IP-based networks. Mobile Internet telephony introduces mobility to Internet telephony, allowing one to stay in communications while roaming. In this paper, a novel protocol called mobile Internet telephony protocol (MITP) is proposed. MITP is an application layer protocol based on the client/server model for mobile Internet telephony services. Signaling for mobility management, including registration, call establishment, and roaming, is accomplished through the exchange of defined request and response messages. Much of the message syntax is identical to HTTP/1.1 and SIP/2.0, thereby enabling code reuse and ease of integration of Web and SIP servers.