| US 7,577,431 B2 | ||
| Providing multiple MSISDN numbers in a mobile device with a single IMSI | ||
| Yue Jun Jiang, Danville, Calif. (US) | ||
| Assigned to Roamware, Inc., San Jose, Calif. (US) | ||
| Filed on Feb. 18, 2004, as Appl. No. 10/782,681. | ||
| Claims priority of provisional application 60/447998, filed on Feb. 18, 2003. | ||
| Prior Publication US 2005/0192035 A1, Sep. 01, 2005 | ||
| Int. Cl. H04W 4/00 (2006.01); H04M 11/10 (2006.01) | ||
| U.S. Cl. 455—432.1 [455/413; 455/432.2; 455/432.3; 455/433; 455/435.1; 455/558] | 14 Claims |
| 1. A method for supporting Mobile Subscriber Integrated Service Digital Network (MSISDN) numbers in an inbound roaming mobile
device, comprising:
registering the mobile device in a Foreign Public Mobile Network (FPMN) in which the mobile device is roaming, the mobile
device having a single International Mobile Subscriber Identity in a Home Public Mobile Network (HPMN) (IMSI-H);
the FPMN accepting the registration of the mobile device;
the FPMN sending messages to a signal gateway SG;
upon the SG determining that the mobile device is a subscriber to a temporary local number service,
modifying a calling Global Title (GT) to the SG;
relaying a registration message to the FPMN with the modified GT; and
the FPMN mapping a local MSISDN for use of the roaming mobile device;
wherein communications of the roaming mobile device using the local MSISDN are routed by the SG using the single IMSI-H,
wherein the HPMN has a Home Location Register (HLR) including a single HLR profile corresponding to the IMSI-H,
wherein the local MSISDN and at least one other MSISDN for use by the roaming mobile device correspond to the single HLR profile,
wherein the FPMN belongs to a network operator different from that of the HPMN, and
wherein the HPMN and the FPMN have a roaming agreement.
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