Re: [hylafax-users] Problem with external Zyxel U90E modem

[hkbyte <myeasytech@xxxxxxxxxxxx>]

Lee Howard wrote:

> On 2005.02.28 04:01 hkbyte wrote:
>
> > I have problem with Zyxel U90E modem when running Hylafax. When the 
> > baud rate for sending  side  fax  machine is  larger than 28000 
> > bauds,  the  hylafax will  not  handshake and will have the following 
> > hylafax logs:
> >
> > Feb 15 16:38:44.78: [ 8358]: <-- [4:ATA\r]
> > Feb 15 16:39:45.40: [ 8358]: --> [10:NO CARRIER]
> > Feb 15 16:39:45.40: [ 8358]: ANSWER: Ring detected without successful 
> > handshake
> > Feb 15 16:39:45.40: [ 8358]: SESSION END
>
>
> In other words, a V.34 sender will not be able to send to the Zyxel 
> U90E.  This is not surprising.  The ANSam signal seems to be throwing 
> things awry.
>
> > Both class 1 and 2 configuration not work. I have already put the 
> > line "ModemRate:              19200" but it still not responding 
> > until I manually change the baud rate of sending side fax machine to 
> > a lower baud rate.
> > How can I force hylafax negotiate with sending fax machine at a lower 
> > baud rate.
>
>
> You can force negotiation at a lower rate, but you can't force the 
> sender to not try to use V.34.  I don't know how you could resolve the 
> matter other than changing modems or preventing all of the people that 
> send to you from using V.34.
I don't understand. Is that mean I can't force the sender to negotiate 
with my modem at a lower rate. (though it want to talk at a higher 
speed). In other words, is that mean a V.34 sending side must have a 
V.34 compatitble receiving side?


hkbyte


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