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Packet telephony appliance

  • US 7,447,195 B1
  • Filed: 11/23/2004
  • Issued: 11/04/2008
  • Est. Priority Date: 06/15/1999
  • Status: Expired due to Term
First Claim
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1. An apparatus for providing a system software service in a packet telephony appliance having a plurality of modules, comprising:

  • means for loading and executing a real-time single address space operating system kernel;

    means for implementing a unified buffering mechanism across all modules in the packet telephony appliance, where the unified buffering mechanism is a zero-copy mechanism for storing and passing data; and

    means for implementing an event-based mechanism for communicating between the modules.

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