A method and system for forwarding information, such as a message waiting
indicator (MWI) message, to a telephone number corresponding to a foreign
network (e.g., a wireless network) and a shared NPA/NXX. The invention
evaluates individual telephone numbers of shared NPA/NXXs to determine to
what networks to send messages. A representative embodiment of the
invention uses a service control point and service package application to
deliver an MWI message from a messaging service provider to a wireless
(i.e., foreign network) telephone number of a shared NPA/NXX. Shared
NPA/NXXs are marked as "portable" in a signal transfer point for
forwarding to the service control point, which determines whether the
shared NPA/NXX telephone numbers require local number portability global
title translation or should be forwarded to an inter-switch voicemail
routing (ISVMR) service package application. The ISVMR service package
application determines the point code to which the MWI message should be
routed.
