METHOD AND APPARATUS FOR DUAL MODE MOBILE STATION CALL DELIVERY

摘要

A method and apparatus for routing a call to a dual mode mobile station (102) when the dual mode mobile station is in one of a plurality of domains (104, 106) is described. If the mobile station (102) is compatible with the domain (104, 106) in which the mobile station has coverage, then the call is delivered to the domain (104, 106) in which the mobile station has coverage. If the mobile station is in a first domain (102), is registered in a second domain (104) and there is no coverage in the second domain (106), then the call may fail in the first domain (104). If the mobile station is not in the first domain (104), is registered in the second domain (106) and there is coverage in the second domain (106), then the call is delivered to the second domain (106).