|SendImage( )||Sends an image file|
SendImage( filename )
Sends an image on a channel, if image transport is supported. If 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. Otherwise , execution will continue at the next priority level.
Returns if the image was sent correctly or if the channel does not support image transport; otherwise, returns -1 .
exten => 123,1,SendImage(logo.jpg)
SendText( ) , SendURL( )