[asterisk-biz] Question about adding Extensions programmatically

Please forgive me if this is the wrong list as this is my first post:

 

I'm wanting to add an extension to the asterisk database programmatically, and I am also wanting to set the announcement message for the voicemail to be a system recording (basically I'll be dynamically adding extensions and all will have the same announcement message).

 

Has anyone done something like this before?  If so (or even if not) can anyone point me in the right direction for details on which tables I need to add records to and also how to set the announcement message to be a system recording?

 

The extensions are only going to be used for voicemail, and will not be used to dial out or for a live person to be answering.

 

I have found some of the tables where I need to modify to add the extension, but I just want to make sure I don't leave anything important out.  And I haven't yet figured out how to set the announcement message up either.

 

Thanks in advance for your help!

 

Sincerely,

 

Dave Phillips