[asterisk-users] Not Dialing 9

[Thczv F. Thczv]

When I set up my Asterisk box at home I didn't want to have to dial 9
to dial off premises, so I gave all my local phones three digit
extensions with this format: 1[1,0]*.  My thought is that there are no
area codes that start with 0 or 1, so if I use those numbers, I can
create 20 local extensions that can be dialed with 3 digits, and not
have to use a timeout when dialing long distance.  If I dial 1, then
anything other than 0 or 1, Asterisk knows I am dialing long distance.
 If I start with any number other than 1, Asterisk knows I am dialing
a local or local toll call.

This has worked fine for me (as far as I know).  Is there some flaw I
am not seeing?  I see a lot of small businesses that require a 9 to
dial out, even though they don't have very many extensions.  Couldn't
they do what I did and not have to dial 9?

I ask because we are having a problem where I work with our Cisco 7940
phones adding an extra 1 sometimes, which gets the local Sheriff upset
(too many 911 calls).

Thanks,
Dave