Patent ID: 7203199
Filing Date: 2007-04-10
Classification: H04L,H04Q

Abstract:
1. A communication system comprising: a first signaling processor configured to receive and process call signaling to generate and transfer a first control message indicating an identifier; a first interworking unit configured to receive voice-band communications and the first control message, determine if initial voice-band processing is required, perform the initial voice-band processing if required, convert the voice-band communications into asynchronous communications with the identifier and with a processing indicator indicating if the initial voice-band processing was performed, and transfer the asynchronous communications; and a second interworking unit configured to receive the asynchronous communications, convert the asynchronous communications into the voice-band communications, determine if the initial voice-band processing was performed based on the processing indicator, perform additional voice-band processing if the initial voice-band processing was performed, and transfer the voice-band communications.