[Asterisk-Users] sending SIP text messages to capable phones from an app

[Andres Paglayan]

Hi there,

I am writing some Ruby (Rails) app which needs to comunicate some
events straight to phones.

The application runs in one box.
Asterisk runs in another. (I am already able to config a basic *)

My questions are:

Where do I start learning how to send SIP messages to a phone?
any recommended library?
(and one more out of anxiety)
How can I can send SIP text to phones without passing thru the * box?
(even if they are registered with the * box)


Thank you all,

Andres