Method of increasing capacity of cellular network

Method of locking function of mobile telephone system

Method of making call connection in a private branch exchange sy

Method of managing supplementary service procedures in GSM/VLR t

Method of managing transmission errors between a base station an

Method of monitoring sound within a vehicle by telephone

Method of operating a combination radiotelephone and paging devi

Method of preventing auto theft

Method of providing a subscription lock to a radiotelephone syst

Method of providing service information to subscribers in a cell

Method of providing wireless local loop operation with local mob

Method of remote launching applications in a message delivery sy

Method of ringing a call responsive apparatus which answered an

Method of selecting the cellular system with which a cellular mo

Method of storing callers telephone numbers in during-absence au

Method of supervising mobile telephone subscriptions in a mobile

Method of upgrading a cellular network

Method of voice mail notification for cellular telephone systems

Methods and apparatus for acknowledging a paging message via a c

Methods and apparatus for communicating data via a cellular netw