ANSI T1.671:2000 pdf free.Signaling System Number 7 (SS7)- Carrier Service Provider ldentification (CSPI). 5 Description of Network Capability 5.1 General Description When a calling party dials a called party number, the originating switch determines which carrier should handle the call as dialed. The originating switch then routes the call within or toward, that carrier’s network. Certain network services, such as...
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