jelester : I believe there is another post here same situation maybe it was you maybe not! Do a search if not info there may help!
If not and it is the reason I thing it is then AHP will never connect from your office at least not that way!
your not hearing the corect Number of rings at the office!
But fear not I have a solution!If you have callerid!
because your using a voice modem you'll be able to use my latest project posted int the thirdparty addons forums.
if you can make a macro to connect to the internet you can use the code for it with AlertDialerPlus or you can set it up to start AHP as long as connect on startup is checked in AHP.