SendImage() — Sends an image file
Sends an image on a channel, if image transport is
supported. This application sets a channel variable named SENDIMAGESTATUS to either OK or NOSUPPORT upon completion.
If the options parameter is set to
j and the channel does not support
image transport, and there exists a priority n+101 (where n is the current priority), execution will
continue at that step.
exten => 123,1,SendImage(logo.jpg)