This document defines technical requirements for number portability as they apply to operator services switching systems. It describes the network capability for handling operator services involving protable numbers. The network capability functions in conjunction with the capability described in T1.TRQ.02-2001, and T1.TRQ.03-1999.
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Number Portability Operator Services Switching Systems (Revision of T1.TRQ.1-1999)
The Alliance for Telecommunications Industry Solutions , 03/01/2001
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