Vista Modem Dialing Incorrectly

Dell Latitude D620
1GB RAM
Intel Centrino Duo T2300 @ 1.67 GHz
Vista Business 32-bit

Installed Vista cleanly. Not sure when this went awry or if it ever worked
correctly but my dialer is not working properly. It is not dialing the
number correctly as entered. This is a problem because I remote into many
systems, mostly phone PBX, to administer.

I set up my location properly. When I put in a number in the dialer, Vista
changes it. When I dial "412XXXXXXX", it dials "1 4 XXXXXXX". The only way
I can get Vista to dial the correct number is to add an area code rule, even
for my own, that adds 412 to the number. So then I would put "XXXXXXX" in
the dialer and it dials "412XXXXXXX". This only helps with the one. If I
need to dial outside my location, I have to modify the existing rule to suit
such. I cannot just add another rule. That did not work.

Am I doing something wrong? Did I miss something? I made sure all my
drivers, including BIOS were updated. I do have the latest Windows updates.
I tried both the Windows driver and the driver directly from Dell. The modem
is a Conexant HDA D110 MDC V.92 Modem.

Any help or things to try is appreciated. Thanks in advance.