Re: [hylafax-users] How to enable ECM?

[George Bell <gbell5@cox.net>]

On Tuesday 26 August 2003 06:01 pm, Lee Howard wrote:
> On 2003.08.26 14:40 George Bell wrote:
> > It appears that the default values for modem parameters are:
> >
> > AT+FCC=1,5,2,2,3,0,0,0,0
> >
> > I'd like to enable ECM, by turning the sixth paramter to a "1".
> > The modem is working in 2.0 fax mode.
>
> Well, in Class 2.0 the modem's firmware must support ECM.  You can find
> out with AT+FCC=?.

Yes, I am certain the modem supports this feature ,and I've even
set it as a default.
>
> > I tried writing the default into the modem itself, but this didn't
> > work.  It appears that hylafax overrides the modem values and
> > places its own.  I've looked in config.ttySN and the config files
> > in /usr/lib/fax but can't see anywhere to change this.
> >
> > How do I turn on ECM?
>
> It should "turn on" automatically if it is supported by the modem.
>
Well O.K. So then why is hylafax sending
   AT+FCC= 1,5,2,2,3,0,0,0      
                                ^
at the beginning of every fax session?
this command is given in the beginning of every fax sesssion, 
according to the logs.
Aren't you essentially saying here: "I don't do ECM"  ? 


I've also tried setting Class2DCCCmd:   AT+FCC=1,5,2,2,3,1,0,0,0

in config.ttySN

But then I get in the log:

AT+FCC=1,5,2,2,3,1,0,0,0=1,5,2,2,3,0,0,0\r

These numbers are being set somewhere but I'm not sure where.

Thanks,

George

                                                                              
        

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