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ITU-T Q Supplement 4

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ITU-T Q Supplement 4

Number portability - Capability set 1 requirements for service provider portability (All call query and Onward routing)

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This Supplement describes the additions required to support Service Provider Portability in a Signalling System Number No. 7 network for Number Portability Capability Set 1 (NPCS-1). The Portability Number Call Control for Service Provider Portability (PNCC-SPP) in a Signalling System Number No. 7 network provides the core function to support portability for geographic numbers using the onward routing and all call query methods.

Author	ITU
Editor	ITU
Document type	Standard
Format	File
ICS	33.040.30 : Switching and signalling systems 35.110 : Networking
Number of pages	27
Year	1990
Document history
Country	International
Keyword	CCITT Q;CCITT Q Supplement 4;ITU-T Q;ITU-T 4;4;ITU-T Series Q Supplement 4;ITU-T Q Supplement 4