Mat Code 993357

I have a customer that has static on one of these. I have a few spares in stock buy have no paper work on how this thing works.
My tech tells me that all six pins are being used (wired to)

Power (ok)
DTMF Port (???)
Talk Port (I assume is the analog port to the switch)

Questions I have:
Anyone have paperwork on this unit ??
I assume you need to program an extension # that it transfers to after it play the announcement, if so how do you program that extension # ??

Recording the announcement, what type of handset do I use and what is the procedure???

Thanks
Walter

http://www.valentinesystems.com