[GreenKeys] M28 Label

[Steve Garrison]

US Robotic!  Come on! They were originally from Hayes, US Robotics came along much later.

Steve G./N4TTY
Sent from my iPhone

> On Aug 1, 2019, at 6:36 PM, David I. Emery <die at dieconsulting.com> wrote:
> 
>> On Tue, Jul 30, 2019 at 11:18:53AM -0400, Peter Gottlieb wrote:
>> It was 9960 in Westchester County NY. 
>> 
>> I had them install a DAA so I could play. The tech that showed up had no idea how to set the levels so we went through the BSP together and figured it out between us and the CO, who had never installed one either. It was a day of fun for me as a teenager. 
> 
>    Back then very few modems that had the line control logic and
> firmware and analog interfaces to work on dial up lines had anything BUT
> DAA interfaces.... so you actually HAD to have a DAA (or some home grown
> equivalent).  Modems didn't just have a RJ jack with the two wires of
> the line on it.
> 
>    I spent more time than I like to remember making software
> control of dial up modem connections work with that antique DAA based
> hardware (including relay based AT&T dial pulse dialers that weighed
> about 35 lbs - of solid iron and copper - containing  literally several
> dozen telco wire spring relays) when I was at Data General in the mid
> 70s - just before DAAs were finally eliminated (and the US Robotics AT
> command set became the standard for modem interfaces).
> 
>    Back then and earlier, there were telco offices (office codes)
> in most places called the Official Office... with a standard set
> of about 100 line numbers usually starting with 00 or 99 (99xx) that
> had all those test capabilities including pairs of numbers that
> would loop back what was on one number to a second one, allowing
> one to measure what a modem was sending and feed it it test tones via
> its interface... and all kinds of other magic things old phone freaks
> remember.
> 
> 
> -- 
>  Dave Emery N1PRE/AE, die at dieconsulting.com  DIE Consulting, Weston, Mass 02493
> "An empty zombie mind with a forlorn barely readable weatherbeaten
> 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in 
> celebration of what could have been, but wasn't and is not to be now either."
> 
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