First of all my preference> System page [page to change 10 digit dialing option and ooma tone] comes up blank on both IE and firefox.
At one time I disabled the 10 digit dialing to reduce the delay when dialing local 7 digit numbers. However when you disable the 10 digit dialing and dial a local number with area code the calls won't go through:
For example: with 10 digit dialing disabled, ie. I have to dial 1 before making long distance calls
I can ONLY dial local calls with 7 digits, its a problem with the numbers I have stored in my phones memory and some local number include the area code and some does not. My local area code is 314, so when I dial 314-555-5555, the calls won't go through and I have to dial just 555-5555 to make calls. This is not a huge problem for me personally but it is for my parents who sometime use phone book on the phone with various format of local numbers stored.
I hope I'm making some sense.