Patent ID: 8571564

Claim:
A method for routing a call to a shared mobile device in a telecommunications network, the method comprising: receiving a call at a MSC or a GMSC, wherein the call is intended for a phone borrower, and wherein the phone borrower is using a shared mobile device belonging to a phone lender; sending a first plurality of messages between a HLR and a System Server, wherein the HLR sends to the System Server an IMSI of the phone borrower and a second IMSI of the shared mobile device, and wherein the System Server sends to the HLR a MSISDN of the shared mobile device; sending a second plurality of message between the System Server and a VLR of the shared mobile device, wherein the System Server sends the IMSI of the phone borrower to the VLR of the shared mobile device, and wherein the VLR of the shared mobile device sends a MSRN of the shared mobile device to the System Server; and sending a virtual MSRN to the MSC or GMSC, wherein the virtual MSRN is associated with the IMSI of the phone borrower and the MSISDN of the shared mobile device.