Richard Morey wrote:

We have 14 PCs running Outlook 2003 connected to Exchange Server
2003. On some of the PC's when we add a contact with a local phone
number, 555-1212, for example, Outlook ads the area code so then
number is saved as (999) 555-1212. However, on some PCs the area code
is not added. I would like to configure all the PCs to NOT add the
area code as we have a new VoIP phone system that integrates with
Outlook for dialing. However, when the local area code is included
the phone system dials the local area code and the call does not go
through. Can someone help me to modify the configuration of Outlook
so the local area code is not added.

You must misconfigure the Windows modem and dialing properties to not
include an area code.
--
Brian Tillman [MVP-Outlook]