Tim Burt wrote:
PLUS...
Numbering your extensions in the "100" to "119" range (or for larger
environments 1000 to 1199) will provide the cleanest interface. This is
because a leading 1 indicates a long distance call, and the number
following a leading 1 cannot be a "0" or a "1" for long distance. Therefore, asterisk can determine with the second digit dialed that you
are dialing an extension, and not a long distance number.
Just a general comment.. Slightly OT, but others might find it interesting. The ORIGINAL intention of leading a phone number with a "1" was NOT a toll indication. In fact, it was explicitly NOT a toll indicator. Rather it was an indicator that 10 digits would follow. It just happened that that _typically_ a 10 digit phone number was a toll call. Given that and the natual evolution of the network, the original meaning was bastardized.
Keep in mind that this whole concept of "toll" is largely a business decision. So are "calling areas". Rate centers, NPA/NXX, NPA, LATA all do NOT indicate any kind of toll arrangement. Typically calling areas are made up of groups of rate centers. And even then there are very complicated tables of what calling areas include what rate centers and for what direction the call is going (into or out of the rate center). That topped with "metro" lines make this a particular confusing topic.
Personally a "1" at the begining of a phone number is of no use to me. So for domestic LD, I just toss it out the window regardless of the toll condition.
Here's a thought. A user is dialing a local number (local for them) but accidently dials it 1+.. Is it LD?
-Brett
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