System and method for selectively transmitting electronic...

System and method for subscriber activity supervision

System and method for the insertion and extraction of telephone

System and method for tracking wireless messages originating...

System and method for transferring voice messages

System and method for use of dual-tone multi frequency...

System and method of accessing and recording messages at...

System and method of accessing and recording messages at...

System and method of accessing and recording messages at...

System and method of collecting audio data for use in...

System and method of deleting a call log and message log in...

System and method of deleting a call log and message log in...

System and method of dynamic allocation of redundant peripheral

System and method of exchanging identification information...

System and method of providing public voicemail service to...

System and method of rapid voice mail access in a radio telecomm

System and method of retrieving electronic mail

System and method of wireless instant messaging

System and method of wireless instant messaging

System and mobile cellular telephone device for playing...