SIP has been used to develop many kinds of SIP The Session Initiation Protocol (SIP) is an service, such as Instant Messaging, Conference and Presence, application-layer protocol that can establish, modify, and and these various services are being bundled to one application, terminate multimedia sessions. SIP was used to develop NAT traversal has long been identified as a large problem when internet telephony service components. Recently, SIP has been considered in the context of the Session Initiation Protocol (SIP). used to develop many kinds of SIP services, such as InstantThe problem is further confused by the variety of NATs that are and Presence, and these various available in the market place today and the large number of M essagn Ce nce potential deployment scenarios. In this paper, we suggest an services are being bundled to one application. SIP transactions ALG which operates inside NAT for traversal of SIP are a fundamental component of SIP protocol. NAT traversal transactions. has long been identified as a large problem when considered in
Next to the binary-based H.323 signaling protocolfor Internet telephony service developed by the Telecommunication World (ITU-T), a more lightweight text-basedprotocol was deemed necessary to address the specific needs of the Internet World. The Session Initiation Protocol (SIP) was introduced in the IETF and has meanwhile gained maturity and support. The SIP-based Internet telephony service guarantees the user mobility. If SIP user is the place where the Internet connection is possible, it anytime can use a Internet telephony service in a where. Internet telephony communication with the user who is connected Internet softphone without headset or deaf people or speech-impairedpeople is difficult. Therefore, in this paper, we suggest mechanism of Audio-Text Mode Assignment on SIP Internet telephony system.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.