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Apparatus, Method, and Computer Program Product For Communication Channel Verification

  • US 20060265487A1
  • Filed: 12/15/2005
  • Published: 11/23/2006
  • Est. Priority Date: 12/15/2004
  • Status: Abandoned Application
First Claim
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1. In a communication network with user access via a plurality of communications devices, a distribution system for communications transmitted between the devices comprising:

  • a distributor for issuing a periodic heartbeat communication using the communications network; and

    an interface coupled to a receiving device, said interface including an indicator and an indicator controller for controlling said indicator responsive to said heartbeat communication without activating said receiving device to receive said heartbeat communication except as used by said indicator controller.

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