[clug] Configuring a modem to answer
grail at goldweb.com.au
Sun Nov 7 23:39:48 GMT 2004
On 6 Nov 2004, at 18:26, Michael Still wrote:
> ...t there is this consistent beeping over the top about once a
> second, for about 20 - 30 seconds, and the handshake fails.
I'm guessing the handshake fails because the modems can't negotiate an
appropriately high speed. Slow them down.
The tone you hear is called a guard tone, it's mainly used by Fax
machines to tell the exchange equipment that yes, there really is
something on the line.
> I assume that I need to put the modem which is answering (a v.90 modem
> if that matters) into funky ISP answer mode.
Check the manual for the options of either:
- not negotiating the highest speeds (start at 38kbps and work down)
- only negotiating a known good speed (ie: 9600bps)
There should also be an option to turn off the guard tone, but that
tone shouldn't be interfering with the modems' handshake.
Hope this helps
I have learned to use the word 'impossible' with the greatest caution.
-- Wernher von Braun
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