Disclosed is a method for operating a radio telephone subscriber unit or mobile station (10) to register with a cellular system. The method includes the steps of determining from registration-related information (REGID) that is received from the cellular system that the subscriber unit must register...http://www.google.co.uk/patents/US6041234?utm_source=gb-gplus-sharePatent US6041234 - Method and apparatus for registering a radio telephone subscriber unit wherein the subscriber unit remains tuned to the registering channel after successful registration
