TELECOM Digest OnLine - Sorted: Re: Telephone Exchange Usage in Low-Volume States

Re: Telephone Exchange Usage in Low-Volume States

John Levine (johnl@iecc.com)
16 Aug 2005 13:42:53 -0700

> reduced per month rate, but I believe private line service is pretty
> much available in all but the most remote areas now.

Make that all areas. SLCs and the like made party lines obsolete.

>> 2) Five digit dialing in some areas not well populated or served by
>> community dial offices?

> I'd say off the top of my head probably not. When CDO's were all
> step-by-step offices dialing patterns as little as three digits were
> available determined by the number of subscribers and optionally could
> be dialed with all seven numbers with the first few digits "absorbed"
> for local callers. When ESS came into being that all ended.

Electronic switches can handle any dialing plan you can think up. But
I believe that by policy it's all 7D or 10D and 1+10D in the PSTN now,
since anything else would be too confusing.

R's,

John

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