Patent ID: 6724751
Filing Date: 2004-04-20
Classification: H04L,H04M,H04Q

Abstract:
A distributed voice processing system comprising at least first and second systems connected by an isochronous network,said first system including: a first line adapter card having a plurality of telephony interface ports for connection lo a telephony network separate from said isochronous network, whereby in operation each telephony interface port can be connected to a respective telephony channel in order to exchange telephony signals with the telephony network as part of a telephone call; a first time division multiplex (TDM) bus presenting multiple timeslots attached to said plurality of telephony interface ports, whereby an incoming telephony signal from a telephony channel associated with a telephony interface port can be transmitted from the port onto a corresponding timeslot on the TDM bus; and call handling means responsive to an incoming telephony call for providing a determination that the incoming telephony signal associated with said call should be forwarded to the application processor unit on the second system; a first interface adapter card for attaching said first time division multiplex bus to said isochronous network, whereby responsive to said determination the incoming telephony signal can be passed from said corresponding timeslot on the TDM bus through said first interface adapter card onto said isochronous network; said second system including: a second interface adapter card for attachment to said isochronous network to receive said incoming telephony signal passed onto said isochronous network by the first interface adapter card; a second time division multiplex bus presenting multiple timeslots attached to said second interface adapter card whereby the incoming telephony signal can be received from the second interface adapter card onto a corresponding timeslot on the second TDM bus; and an application processor unit which can access the incoming telephony signal on said timeslot on said second time division multiplex bus.