The present invention provides for customizing a telephony ring signal to correspond to the originator of an incoming call. The apparatus and method combine the functionality of both a Traffic Alert Collision Avoidance System and a Mode-Select transponder in an integrated L-band traffic surveillance apparatus having a single processor that is embodied in a single Line Replaceable Unit. Release structures are provided to reflect or refract light through the cylindrical wall 26 of the light guide 22. An acquiring section acquires a destination address including at least a telephone number, a password and a domain name, from the requesting node. The recording layer contains at least one particular polymethine pigment selected from polymethine pigments having 1 to 4 carbons in the methine main chain, so as to obtain a sufficient recording sensitivity for a red wavelength range of light.