How to handle translation of portability title for number portability

摘要

By delegating SCCP GTT processing to NP GTT to control the routing of non-line related messages in a number portability environment, this NP GTT, as well as the default GTT and message return control previously handled by SCCP, The present invention provides a method for translating portability generic name for number portability to perform portability number translation, which is additionally required due to number portability. The present invention performs the portable number translation (Portable Number GTT) which is additionally required in the number portability environment, and this function has the effect of being completely transparent from other systems (functions) in the network.