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Evolution of SS7
Features of SS7
Functions of SS7
SS7 signaling links
Service Switching Points (SSP)
Signal Transfer Points (STP)
Service Control Points (SCP)
Signaling Link Message
ISUP message structure
Initial address message
Address complete message
Release complete messages
There are 3 main types of services provided by Ss7 network.
alternate billing services
Thet use of SS7 is not for call setup and teardown, but rather for accessing databases.
Examples of some applications supported by SS7 are:
• PSTN and mobile services
• ISDN (Voice and Data)
• Interaction with Network Databases and Service
Control Points for ervice control
• Operations dministration and Maintenance of Networks
Faster call set-up
Greater trunking (or Queuing) efficiency
• SS7 is the world’s largest data network. It links telcos, cellular long-distance networks nationwide and worldwide.
• SS7 interconnects thousands of telephone company providers into one common signaling network.
• SS7’ll continue to evolve as new features are added to the Advanced Intelligent Network.