TELECOM Digest OnLine - Sorted: Re: Enterprise Numbers Still in Use?

Re: Enterprise Numbers Still in Use?

Arthur Kamlet (
Thu, 14 Jul 2005 20:04:10 UTC

In article <>,
<> wrote:

> He said:

>> They are still in use, yes. Their purpose is different from 800
>> numbers, as it gave the called party the ability to restrict
>> incoming calls to selected areas of his choosing, areas as small as
>> a single exchange. That's never been available with 800 numbers.

800 numbers require multiple dips into SCPs, at least one to identify
the carrier and another to help route and bill the call.

During the routing stage, the SCP can inquire about where to route the
call, or not to route, based on all sorts of "intelligent" criteria,
such as time of day, day of week, and originating NPA or exchange or
full number. So if you want an, 800 number can be routed based on the
full 10 digit ANI. The days of mileage based zones were interesting,
but as more and more intelligence gets built into 800 numbers, just
distant memories.

Art Kamlet ArtKamlet @ Columbus OH K2PZH

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