Patent ID: 7286756
Filing Date: 2007-10-23
Classification: H04J,H04L

Abstract:
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.