A system for delivering optical signals to and from an undersea optical cable may include a cable landing station connected to the undersea optical cable and configured to convey a wavelength division multiplexed optical signal from the undersea optical cable. The system may also include a point of presence...http://www.google.de/patents/US7424224?utm_source=gb-gplus-sharePatent US7424224 - Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence
