Patent ID: 6453167
Filing Date: 2002-09-17
Classification: G06Q,G07F,H04L,H04M,H04W

Abstract:
A method of operating a telecommunications system including at least one host station and a plurality of subscriber units, wherein said at least one host station is operable to transmit a first message to at least one selected said subscriber unit, said first message being adapted to be received and displayed at said least one subscriber unit and being transmitted as a first data stream in a predetermined format, and each of said subscriber units including memory locations for storing information, said method comprising the steps of:transmitting a second message to at least one selected said subscriber unit, said second message containing information with respect to a party which may be selectively called from said at least one selected subscriber unit, and said second message being transmitted as a second data stream which is an encoded version of said predetermined format and comprises an embedded command stream in which said data stream has at least one embedded command which is a write command for storing said information in at least one selected said memory location of said at least one selected subscriber unit; receiving said second message at said at least one selected subscriber unit; determining when a message received at said at least one selected subscriber unit is a second message by detecting its format to be an embedded command stream; routing said second message to decoding means; decoding said second message; storing said second message in said at least one memory location as identified in said second message; fetching said information from said at least one memory location and displaying said information; calling said party identified by said stored information from said at least one selected subscriber unit via a voice communication channel; transmitting a third message from said party to said at least one selected subscriber unit in response to the establishment of said voice communication channel, said third message being transmitted as a third data stream which is in said encoded version of said predetermined format and comprises at least one embedded command which is a read command; fetching data from at least one said memory location of said at least one selected subscriber unit as identified in said third message; producing a fourth message representing said data; and transmitting said fourth message to said party, said fourth message being transmitted as a fourth data stream which is in said encoded version of said predetermined format.