Patent ID: 7386302
Filing Date: 2008-06-10
Classification: H04W

Abstract:
1. A computer-readable medium storing computer-executable instructions for causing a Mobile Switching Center (“MSC”) programmed thereby to perform a method comprising: storing a subscriber profile including an International Mobile Subscriber Identity (“IMSI”) and a pseudo-Mobile Subscriber Integrated Services Digital Network Number (“MSISDN”) in a location register, the pseudo-MSISDN including plural leading digits that distinguish the pseudo-MSISDN from valid MSISDNs; after receiving a call originating from a mobile station including a Subscriber Identity Module (“SIM”) with the IMSI, translating the pseudo-MSISDN as a calling party pseudo-MSISDN for the call, translating the the pseudo-MSISDN including recognizing the calling party pseudo-MSISDN as being in a format defined for hotline routing; and if the calling party MSISDN is in the format defined for hotline routing, routing the call to a service activation center; if the calling party MSISDN is not in the format defined for hotline routing, determining whether routing instructions are present in the location register associated with the IMSI; if routing instructions are present in the location register, routing the call in accordance with the routing instructions; and if routing instructions are not present in the location register, routing the call to a call recipient.