Service Broker 1

What is Service Broker ?

Service broker is a service abstraction layer between the network and application layer in  telecom environment. SB( Service Broker ) enables us to make use of existing applications and services from Intelligent Network’s SCP ( Service control Point ) , IMS’s Application Server as well as other sources  in a harmonized manner.

The Service Broker Application Server provides the services in various permutations and combinations. Examples:  Mobicents / Rhino TAs for Jainslee SBB , or Weblogic / Sailfin for Sip servlets.

What is Service Orchestration ?

The Process of Orchestrating various service to provide a single flow control is refereed to as Service Orchestration.

What is Service Harmonization  ?

I have tried to simplify the concept by visualizing different boxes of various communication platforms as SIP, HTTP , CAP 1/2/3/4 , SMTP etc and then imagining a system that caters to all of these .  It is primarily important that the billing and chagrining system remains common to all the sources and protocols be it 2G , 3G or 4G based. A post on service harmonization between various telecom generations is at

Service Harmonization between generations of telecom

service harmonization3

The next writeup Service broker 2 is :

Service Broker 2

This contains the Defination and purpose of using a Service broker as well as its role in network enviornment. It also contains service broker functions like Real-Time Charging , Protocol/Call Flow Management/Call Screening Management , Subscriber Data Management Interaction, Media Resource Brokering.

Details of Service Broker implementation in IN and IMS is at article below. Details on Service Broker and how service provider acts as a central Node for Services invocation and services composition is described in this. It clearly shows Service Broker provides Services Orchestration / Interaction, service development, third party integration and acts as a protocol gateway.


SIP Presence

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 and willingness to communicate its … Continue reading SIP Presence

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 system . Often my clients are surprised to hear what they have in current operation is actually fitted in … Continue reading Legacy Telecom Networks

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 Network IMS Layers Transport / Media Endpoint Layer Backhaul network Border Gateways Session & Control Layer HSS (Home Subscriber Server) SCF (Call Session Control Function) MGw (Media Gateway Control Function) Application Services Layer TAS (Telephony Application Server) IM-SSF ( IP Multimedia Services Switching … 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 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 ( Long Term Evolution ) LTE evolved its … 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.

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