Patent ID: 6389042
Filing Date: 2002-05-14
Classification: H04Q

Abstract:
A telecommunications network comprising:a number of interconnected switching units at least some of which provide switching for ISDN connections, some of said switches being connected to terminals adapted to provide (a) voice channel and data channel communications on a single communications line and (b) switching instructions by way of a data channel connection, control means of the network being responsive to seizure of a switch connection to recognise presence of such a terminal and to cause control means of the switch to effect decoding of data from a data channel associated with the terminal to collect any further control information required by the network for instantaneous control of the connection; wherein the control means of the network causes control means of the switch to effect transfer of data channel signalling from a connected ISDN termination through switch means to a prompt and collect peripheral adapted to extract control information from transmitted data; and the prompt and collect peripheral is arranged to transmit data through the switch means for transmission as a data message to a connected ISDN termination during a data phase of one and the same call connection including both the data phase and a voice phase, the data phase preceding the voice phase.