Method and apparatus for prioritizing voice and data in a circuit-switched network

DC
  • US 6,507,648 B1
  • Filed: 12/23/1998
  • Issued: 01/14/2003
  • Est. Priority Date: 12/23/1998
  • Status: Expired due to Term
First Claim
Patent Images

1. A switching unit connectable to a plurality of external lines carrying a plurality of external bandwidth channels and also connectable to a plurality of internal lines carrying a plurality of internal bandwidth channels, the switch comprising:

  • a plurality of internal interface units connectable to the internal lines, for receiving outgoing call requests associated with respective internal bandwidth channels;

    a control unit connected to the internal interface units, for receiving outgoing call requests from the internal interface units and generating respective updated circuit mappings therefrom; and

    a switch connected to the control unit and to the internal interface units and connectable to the external lines, for controllably establishing circuits between the external bandwidth channels and respective ones of the internal bandwidth channels in accordance with updated circuit mappings received from the control unit;

    wherein the control unit comprises means for, upon receiving an outgoing call request, determining whether there is an available external bandwidth channel and if so;

    generating an updated circuit mapping sent to the switch for establishing a circuit between the available external bandwidth channel and the internal bandwidth channel associated with said outgoing call request;

    otherwise;

    determining whether the outgoing call request has a higher priority than at least one currently established circuit and if so, generating an updated circuit mapping sent to the switch for interrupting a lower-priority circuit and establishing a new circuit between the external bandwidth channel formerly associated with the interrupted circuit and the internal bandwidth channel associated with said outgoing call request.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×