Patent ID: 7979066

Claim:
A system comprising: a first home location register module; a first visitor location register module; a first community location register module; and a first multiple International Mobile Subscriber Identity (IMSI) location register (MILR) module, wherein the first MILR module includes: user information associated with a plurality of mobile subscribers, and wherein for each of the plurality of mobile subscribers, the user information includes: a first IMSI number and a first Mobile Directory Number (MDN), wherein the first IMSI number and the first MDN are associated with a first country; a second IMSI number and a second MDN, wherein the second IMSI number and the second MDN are associated with a second country; and active location information, wherein when the active location information indicates that a particular mobile subscriber is located in the first country, the first IMSI number is active, the first MDN is an active local telephone number in the first country, and the second MDN is an active local telephone number in the second country, and wherein when the active location information indicates that the particular mobile subscriber is located in the second country, the second IMSI number is active, the first MDN is an active local telephone number in the first country, and the second MDN is an active local telephone number in the second country.