phonetag. old program. used it for various things back in win 3.11 however, it needs some dlls, which you can download, but i only 1/2a$$ed tried to get it to work under xp and couldnt.
if it does run under xp it will dial any number. what youll need to do though is time how long it is from the time the program is done dialing until when your voice mail picks up. divide that time by 3 seconds, thats how many camas youll need to put in the dial string to have the modem pause until its time to enter you voicemail pin.
example. you dial (123)456-7890 to your phone, then after 4 rings totaling 15 seconds add 5 camas, then you pin '123'. in the program should look like this
1234567890,,,,,123
that will get into your voice mail. using the camas you can also have it automaically choose your menu optins in your voice mail also. say you dial you number, have to enter your pin, then have to enter '1' for messages, then '2' for old messages:
1234567890,,,,,123,,1,,2
good luck getting it to run in xp.
http://www.pdaconsulting.com/blackhat.htm
sorry if it's not permitted to answer or link to 'toolz'. it does have legit uses also though, like the whole p2p thing.