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Emergency calling with a VoIP device in a VLAN environment

  • US 20020085538A1
  • Filed: 12/29/2000
  • Published: 07/04/2002
  • Est. Priority Date: 12/29/2000
  • Status: Active Grant
First Claim
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1. In a virtual local area network (VLAN), a method of handling emergency voice over internet protocol (VoIP) calls comprising the steps of:

  • a VoIP device reserving a range of specific port numbers for use during emergencies;

    transmitting an emergency call within the VLAN using a port number in said range; and

    the VoIP device reserving extra resources for handling the call once it determines the port number falls within said range.

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