Market trends are not in favour of Telecom Service /providers with increasing use of OTT ( Over The Top ) applications like WhatsApp, Facebook messenger, Google hangouts, skype, Viber, etc. OTT applications are often blamed to take a stake in voice traffic revenue by using IP calls where the telco could've charged based on its … Continue reading OTT ( Over the Top ) Communication applications
Tag: IMS
Service Creation Environment (SCE ) for SIP Applications
Develop a SCE ( Service Creation Environment ) to addresses all aspects of lifecycle of a Service, right from creation/development, orchestration, execution/delivery, Assurance and Migration/Upgrade of services.
Harmonization of services between generations of telecommunication core layers
Telecommunication service Harmonization Gateways based Harmonization Service Broker based Harmonization Legacy switches vs Softswitches Service Delivery Layer in Legacy vs Harmonized Services A communication system can be made up of many components which are individually undergoing evolution such as access layer generations, and core layer upgrades. Harmonized and uniform open standard-based service delivery platforms over … Continue reading Harmonization of services between generations of telecommunication core layers
SIP Presence
Subscribe SIP Notify SIP PUBLISH We have already learned about Sip user agent and sip network server. SIP clients initiates a call and SIP server routes the call . Registrar is responsible for name resolution and user location. Sip proxy receives calls and send it to its destination or next hop. Presence is user’s reachability … Continue reading SIP Presence
Legacy Telecom Networks
Characteristics of Legacy Systems PSTN (Public Switched Network) TDM ISDN (Integrated Service Digital Network) Services of Legacy Telecom Networks I use the term legacy telecom system many a times , but have not really described what a legacy system actually is . In my conferences too I am asked to just exactly define a legacy … Continue reading Legacy Telecom Networks
SIP/VOIP transformation towards IMS (Total IP)
Upgrading a softswitrch solutions to IMS Intelligent Networks( IN) Fixed/mobile convergence(FMC) with IMS Legacy to IP transformation WebRTC based Unified Communication platform Challenges in Migration to IMS (Total IP ) The telecommunications industry has been going through a significant transformation over the past few years. At the outset incumbent operators used to focus on mainly basic … Continue reading SIP/VOIP transformation towards IMS (Total IP)
Internet Telephony Convergence- JAINSLEE Platform
Convergence : Telephone networks and computer networks converging into single digital network using Internet standards. Components in a Network Client computer Server computer Network interfaces (NICs) Connection medium Network operating system Hub or switch Routers- Device used to route packets of data through different networks, ensuring that data sent gets to the correct address Figure :simple computer … Continue reading Internet Telephony Convergence- JAINSLEE Platform
IMSSF and RIMSSF
This post particularly describes the gateways in IMS which communication back and forth with a legacy endpoints.To get a overview of IMS itself click here and to get a detailed description of IMS and its architecture click here . What is IM-SSF ? IP Multimedia Service Switching Function is a gateway to provide IN service such … Continue reading IMSSF and RIMSSF
IP Multimedia Subsystem (IMS)
Why IMS ?What benefits does IMS bring ?Features of IMS NetworkIMS LayersTransport / Media Endpoint LayerBackhaul networkBorder GatewaysSession & Control LayerHSS (Home Subscriber Server)SCF (Call Session Control Function)MGw (Media Gateway Control Function)Application Services LayerTAS (Telephony Application Server)IM-SSF ( IP Multimedia Services Switching Function)OSA-GW (Open Service Access Gateway)IMS-architectureIMS standalone architectureInteroperable IMS core for heterogeneous access networks … Continue reading IP Multimedia Subsystem (IMS)
IMS in EPC ( Evolved Packet Core )
Packet Switched and/or Circuit swicthed Communication The earlier models were distributed between legacy circuit switched networks and evolving packet switched networks Sources : NEC eNB SGW E-UTRAN PDG MME With the massive improvents in quality of network srevices packet switched comunication protocls became more resilent and replaced the circuit swicthed protcols for realtime communication. LTE … Continue reading IMS in EPC ( Evolved Packet Core )
Telecommunications convergence – VoIP, PBX and IMS
The signalling protocols migration like from signalling system 7 (SS7) to session initial protocol (SIP) have been taking place in Telco-Industry. Similarly nodes of legacy network like signal transfer point (STP) of legacy network are being migrated to call session control function (CSCF) of IMS that allows the rapid development and deployment of enhanced, revenue-generating multimedia services for fixed, mobile and cable operators. IMS architecture enables operators to seamlessly run a plethora of next-generation converged services over their fixed, mobile and cable networks, achieve a faster time-to-market for new services and have fewer performance bottlenecks.
Telecom R & D 