Your reference to 'phone 1 port' is unclear. I'm assuming you meant Service Provider 1 (SP1).
The following should give you 7-digit dialing support from both the PHONE Port and the Auto Attendant when Service Provider 1 (SP1) is used:
Service Providers -> ITSP Profile A -> General -> DigitMap:
(1xxxxxxxxxx|<1>[2-9]xxxxxxxxx|<1aaa>[2-9]xxxxxx|011xx.|(Mipd)|[^*#]@@.'@'@@.)
where aaa is your local area code.
You can set the PrimaryLine for the Auto Attendant to SP1 Service (SP1) with:
Voice Services -> Auto Attendant -> PrimaryLine : SP1 Service