> how can I send text directly to a specific device, something like:
> exten => 103,1,SendTextToDev("SIP/7", "hello") ??
I don't think you can send to a particular device, but you can send it
to the device calling if it support it.
See http://www.voip-info.org/wiki/index.php?page=Asterisk+cmd+SendText
hth