TELECOM Digest OnLine - Sorted: Re: Non-Bell ESS?

Re: Non-Bell ESS?

John McHarry (
Thu, 14 Jul 2005 23:42:21 GMT

On Thu, 14 Jul 2005 12:44:48 +0000, Thor Lancelot Simon wrote:

> In article <>, John Stahl
> <> wrote:

>> wrote about Re: Non-Bell ESS? on Date: 12 Jul
>> 2005 12:11:16 -0700:

>>> I'm very sure it was a non Western Electric switch. It was made in
>>> Plano Tx (forgot the maker's name) and it was used for local calls....

>>> ... The basic pattern was the same-an unexplained deluge of
>>> electronic messages shutting down a computer built by DSC
>>> Communications Corp. of Plano, Texas ...

>> To the best of my memory, DSC, whose name was mentioned in the archive
>> you added (above), never made any type of an ESS switch, which the
>> original essage questioned a non-Bell switch. DSC, now owned by
>> Alcatel (France), made a whole line of CPE including multi-line
>> systems and even some FO based equipment.

DSC stood originally for Digital Switch Corporation, and they did make
a switch. I know they were fairly big in the large PBX area, and
possibly in toll tandems, but I don't recall whether they made a local
switch. I would be somewhat surprised if they never did.

I think they achieved their greatest fame for making STPs, where they
became the dominant supplier for some time.

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