1. INTELLIGENT NETWORK Kamalasanan

2. IN - Network SSP Service switching point IP Intelligent peripheral SCP Service control point SMP Service management point SCEP Service creation environment point

5. IN PHYSICAL PLANES SSP (Service Switching Point) SCP (Service Control Point) SMP (Service Management Point) IP 9Intelligent Peripheral)

6. SSP An access point for IN services SSP identifies the IN call by analysing the Service Key Initiates a query to SCP Resumes to further call processing after receiving the advice from SCP SSP to SCP interface is G703 digital trunk Protocols supported MTP,SCCP,TCAP and INAP

7. SCP Stores data conerning Network, services logic and customers Most important database hence fault tolerant Service programs and data are updated from SMP Communicating to SSP and IP

8. SMP Front end of SCP and provides the user interface Updates SCP with new data and service logics and collects statistics from it Service provider is connected with X25 connection or IP Contain the service creation environment of new services

9. IN Provides enhanced services to all SSPs in an IN under the control of SCP A centralised service for sharing purpose The main resources are 1.IVR 2.Announcements 3.Voice mail boxes 4.Speech Recognition system 5.Text to speech converters Interfaces to SSP via ISDN PRI or G703 Protocols supported ISUP,INAP,TCAP,SCCP and MTP

10. Functional Planes NINE functional Planes CCAF CCF SSF SCF SDF SRF SCEF SMAF SMF

11. FEs CCAF –Call control agent function give access to the network CCF-Involves the basic switching and trigger function as per the criteria of IN SSF-Switch calls based on the advice of SCF SCF-Contains the service logic components and advises the SSF for further call handling SDF-Contains the user related data

12. FEs SRF-Covers all the specilised resources like announcements etc SCEF-Specifies,develops,tests,and deploys the services SMAF-provides the interface between service management function and the service manager who may be a operator SMF-Enables a service to be deployed and used on IN

13. PE-FE- PROTOCOL PEFE SSPCCF,SSF,CCAF SCPSCF,SDF SMPSCEF,SMF,SMAF IPSRF FE-FEPE-PEProtocol SSF-SCFSSP-SCPINAP,TCAP,SCCP and MTP SCF-SDFSCP-SDPX.25 Propritery SCF-SRFSCP-IP SCCP-SSP-IP INAP TCAP,SCCP,MTP ISUP,INAP,TCAP,SCCP and MTP SRF-SSFIP-SSPISUP and MTP

14. Distributed FEs

15. CAMEL CAMEL Phase1 Implemented in 1997 CAMEL Phase1 not supporting SRF Phase 2 implemented in 1998 Supports many INAP Capabilities Support SRF Roaming charging is possible CAMEL Phase 3 support GPRS data

16. CAMEL Phase 1