Set and Clear MWI from Third party Voice Mail using IAX2

We are the creators of a Voice Mail system and would like to be able to Set and Clear MWI using the IAX2 protocol. Is there a Develpement Package we can apply for that would allow us to do this?

What I have read so far indicates that Asterisk monitors mailboxes and turns on MWI if they have a message. Also using the IAX2 protocol, you can poll mailboxes on a secondary Asterisk server. We would like to be able to address our Voice Mail server using the same protocol if possible.