Method and apparatus for signaling an existing telephone...

Details Method and apparatus for signaling an existing telephone... Method and apparatus for signaling an existing telephone...

H - Electricity

04

M

379/4

H04M 11/00 (2006.01) H04N 7/14 (2006.01) H04Q 3/00 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1210171

ABSTRACT OF THE DISCLOSURE A method of and an apparatus for signaling an exist- ing video telephone communication in a video telephone appa- ratus which includes a transmitter for transmitting a short identification signal through the audio channel as a video telephone identification signal upon lifting of a handset, a detection circuit for detecting an incoming video telephone identification signal and an indication unit for an acoustic- al and/or optical indication.

447084

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