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Real-time media communications over firewalls using a control protocol

  • US 6,922,786 B1
  • Filed: 10/31/2000
  • Issued: 07/26/2005
  • Est. Priority Date: 10/31/2000
  • Status: Expired due to Term
First Claim
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1. An apparatus comprising:

  • a controller to specify a filtering characteristic based on a control protocol from a call server serving a firewall between a source network and a destination networks; and

    a filter coupled to the controller to filter a packet in a call transmitted from the source network based on the filtering characteristic, the filter accepting the packet if the packet satisfies the filtering characteristic and rejecting the packet otherwise.

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