[Asterisk-Users] Routing NOTIFY Messages?

[John J. Sawa]

Is it possible to route SIP NOTIFY messages through * ?

Basically, I have an external VoiceMail application that needs the 
ability to send SIP NOTIFY messages to * users, in order to do MWI to 
the SIP phones. I realize the asterisk voicemail application does this, 
but does * have the ability to accept these SIP messages from another 
application. If so, will my application have to REGISTER then INVITE the 
phone then send the NOTIFY message?

Currently, my application can send NOTIFY messages directly to the 
phones in order to turn on and off MWI, but I would really like to be 
able to send these messages to * and have it handle the routing to the 
endpoints as * knows all the endpoints due to registration and proxy 
capabilities. Any input on if and how this can be done would be appreciated.

Thank you. -John