SIGTRAN SS7 Over IP
Benefits of SS7 Over IP 1. Decreased cost of infrastructure 2. Improved ease of network management 3. Ability to rapidly deploy new services SIGTRAN based Network Architecture The SIGTRAN is transition from the traditional circuit-switched network to packet-switched network, 1. Media Gateway handles the media or bearer. It converts media from one format to other format. For eg. it can terminate TDM trunks from PSTN network and converts the audio to RTP format and deliver to IP network. 2. Media Gateway Control , contains call processing, manages resources of MGs that it controls. 3. Signaling gateway terminates circuit switched network signaling such as SS7 and converts to SS7 over IP. It transports IP based elements signaling. 4. As we see in IP based architecture, the Signaling and Media control plane are separated. SIGTRAN Protocol Layers SCTP ( Stream Controlled Transmission Protocol) Why SCTP was developed ? During initial phases when SIGTRAN was developed, the existing tran...