[asterisk-users] DISABLE 9?

[Wilson Pickett]

> The 9 may be legacy, but it is somewhat important!

It's also geo or culture specific. I've been in may offices where you
dial 0 for outside. I have a system in our office where there are
provider codes to force use of one specific one, access codes that
will give a ZAP dialtone of one of two lines and detection of anything
else that is dialed as local extensions, long distance ones,
cellphones (rates vary so LCR is important), etc.