ATIS 1000660.1998(S2018)

This document describes the Signalling System Number 7 (SS7) network capabilities for completing calls to end users with portable numbers. The SS7 network capability, known as Call Completion to a Portable Number (CCPN), provides the core functionality. CCPN also includes optional network capabilities for obtaining the routing information outlined in 4.1 and described in Annexes A-C to supplement the CCPN capability. These optional network capabilities are: Number Portability (NP) Query – Response, NP Release to Pivot (NP RTP), and NP Query on Release (NP QoR).