whalesong

The peculiar clicking and whooshing sounds made by a PEP

modem such as the Telebit Trailblazer as it tries to

synchronise with another PEP modem for their special

high-speed mode. This sound isn't anything like the normal

two-tone handshake between conventional modems and is

instantly recognizable to anyone who has heard it more than

once. It sounds, in fact, very much like whale songs. This

noise is also called "the moose call" or "moose tones".