Hi John,
I would have thought that if the modem was truly locked up you would have received
busy tone from the PSTN switch.
What might have occurred is that the modem on release (DCD down) might not have
dropped DSR back to the PC or whatever device. You calling the modem it answered DCD
came up. You dropped the call DSR dropped and was recognised by the device and your
back in business.
Not that it matters it worked. This is more of a thought as to why it worked.
Teunis,
Hobart, Tasmania
Australia
On Wednesday, February 21, 2001 at 05:50:33 AM, John Neiberger wrote:
> Actually, this isn't really a troubleshooting trick, but a potential fix for
> a modem that is locked up. We came in at 4:30 this morning to do some
> intrusive testing that would take down every automated teller machine in our
> network for the length of the test. We went through the first steps in the
> process which took everything down, and then tried to dial in to a remote
> router that we were testing with. One problem...the modem would answer, or
> at least pick up, but then would not do anything. It seemed to be completely
> hung.
>
> This was a bad thing. If we didn't do the test today, we'd have to come in
> again tomorrow morning at 4:30 and none of us were looking forward to that.
> While pondering our options, I thought of something: call the modem using a
> regular phone and just start punching buttons on the phone when the modem
> answers. My reasoning was that maybe some bursty noise would wake it up.
>
> We tried it, and to our *great* surprise it actually worked! So, if you
> ever have a hung modem and there's no one around to reset it, give this a
> try.
>
> Regards,
> John
>
>
>
>
>
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