On 6/4/19 9:45 PM, Grant Taylor via cctalk wrote:
> Does anyone have any experience working with modems that didn't include 
> internal / auto dialers?
> 
> They came up in a conversation in a newsgroup and I realized that I know 
> of them, but know virtually nothing about them.
> 
> I think they were separate devices, which probably means that they 
> likely had separate serial ports to talk to each of them.  Did they 
> support some sort of pass through?  Or did they really require two 
> serial ports on the host?
> 
> 
> 

It's been a long time since I saw one (I used to have a bunch
in my collection, actually).
And not all of them were separate.  Some were ion a single box.
DEC had some and AT&T and a few third party companies.

bill

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