PACKET SWITCHED NETWORK VOICE COMMUNICATION

摘要

Method of confirming the establishment of a voice connection, such as a VoIP connection, between first and second end stations coupled to a packet switch ed communications network. The voice connection is used to transfer an audible request from the first end station to the second end station, to ask the use r of the second end station to generate a predetermined vocal response. The first end station compares any response from the second end station to the predetermined vocal response. The connection is determined to be established in response to a successful comparison. The predetermined vocal response includes a predetermined speech sequence comprising characters, a word or words, and a speech recognition procedure is applied to the received respons e to determine the presence of any speech sequence for comparison with the predetermined sequence. If a fault is detected an alternative connection is established to execute a process to correct the fault.