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DWDM system with IP telephony provisioning at remote locations

  • US 7,286,756 B1
  • Filed: 05/15/2001
  • Issued: 10/23/2007
  • Est. Priority Date: 05/15/2001
  • Status: Expired due to Term
First Claim
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1. A method for providing voice communications at an optical amplifier site of a DWDM system, the method comprising:

  • receiving an optical service channel and a multiplexed payload channel at the amplifier site, the optical service channel carrying voice over IP data in a supervisory channel of the optical service channel and having a wavelength that is out of band with respect to wavelength bands of a multiplexed payload channel of the DWDM system, the optical service channel independent of the multiplexed payload channel and configured to carry monitoring data for DWDM equipment;

    converting an optical signal of the optical service channel to a digital electrical signal at the amplifier site; and

    sending the digital electrical signal to a router configured to support voice over IP;

    wherein the router is configured to communicate with other routers connected to other optical amplifier sites to operate in a wide area network.

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