[Asterisk-Users] zaphfc: empty HDLC frame or bad CRC received

[Julian J. M.]

I had a similar problem with a recent install:
   * TDM11B
   * 1 Port HFC Card

I got that messages about HDLC Framing errors. It ended up being the
way I loaded the required kernel modules.

1) Remove or comment "install" lines in /etc/modprobe.conf (or
modules.conf), regarding the kernel modules for the TDM and the HFC
Card. They usually launch ztcfg.
2) In the init script, load both modules manually  (modprobe wcfxs zaphfc)
3) Issue the ztcfg command
4) Load asterisk

That way it worked without problems.

Julian J. M.

On 6/27/05, David Masure <d.masure at ucr.fr> wrote:
>  
>   
> Hi all, 
>   
> I'm  using asterisk 1.0.6 with bristuff-0.2.0-rc7k.  I've already set up 3
> boxes with the same config, but I'm facing something strange with the fourth
> one : 
>   
> In my messages log, I've got thoses lines : 
>   
> 0xff).
> kernel: zaphfc: empty HDLC frame or bad CRC received (framelen = 13, stat =
> 0xff).
> kernel: zaphfc: empty HDLC frame or bad CRC received (framelen = 11, stat =
> 0xff).
> kernel: zaphfc: empty HDLC frame or bad CRC received (framelen = 6, stat =
> 0xff). 
>   
> This problem causes asterisk to crash...  The only thing to do is a nice
> reboot :-) 
>   
> I read some informations about it in the list telling that's because of a
> wrong signalling type...  But as, I am using the same config everywhere, I
> don't believe the problem is on the box ... 
>   
> Questions .... 
>   
> 1) The asterisk box is located in France...so could this be that the telco
> (France Telecom) is powering it's lines with different signalling (for
> example mutli point and point to point ?) 
>   
> 2) Does anyone ever face the same problem ? 
>   
> 3) Does someone know how to cope with this problem ? 
>   
> Thanks for your help ...I'm really don't know what to do ....!!! 
>