phone/fax switch

• Messages sorted by:[ date ][ thread ][ subject ][ author ]

Hi,

On Fri, Jan 01, 1999 at 07:37:05PM +0100, Bjoern_Hesse wrote:
> i have a problem connecting to a fax machine behind a phone/fax
> switch.  I have tested two modems, one works, mine doesnt. :-(
> 
> When my modem connects, i can hear the voice of the phone/fax switch
> and a few seconds after that the modem hangs up with a busy. 
> Using the other modem a can send the fax without a problem and i
> doesn't hear the voice of the phone/fax switch.

Some modems are really confused by "weird tones on the remote end" 
(usually called "voice" :) ).  Sometimes it works if you disable BUSY
detection - ATX<something> - but then, it won't detect a real BUSY 
either.  So that's far from perfect.

> My modem is an older one, I do not know the type of manufacture, maybe
> the applied logs can give you some information:
> 
> Thank you very much, even the hint "By a new modem" would help me.

Buy a new modem might be the best way, besides the fact that there doesn't
seem to be a really perfect modem on the market right now. ELSA is good
(voice, fax, data), but not perfect for fax yet...

> <-- begin information about the modem that doesnt work -->
> AT+fmfr?	EXAR
> AT+fmdl?	ROCKWELL 144DP
> ATI+frev?	242

That's really pretty old - one of those modems that lead to all the
"Rockwell sux" ranting in the mgetty docs.

> 01/01 19:12:53 yS1  mdm_send: 'ATI'
> 01/01 19:12:53 yS1   mdm_gis: string 1: '14400'
> 01/01 19:12:53 yS1   mdm_identify: string '14400'
> 01/01 19:12:53 yS1  Generic Rockwell modem (14400)

That's a more recent variant, and those aren't *that* bad (they still
suck, but less than the newer 56k variants).

gert
-- 
USENET is *not* the non-clickable part of WWW!
                                                           //www.muc.de/~gert/
Gert Doering - Munich, Germany                             gert@greenie.muc.de
fax: +49-89-35655025                        gert.doering@physik.tu-muenchen.de