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

[Marco Parmeggiani]

Nick Barnes ha scritto:

> I've only ever seen when the signalling is wrong. For example if the line is
> in PTMP mode when it should be in PTP or vice-versa.
> 
> 
>>this is the zapata.conf:
>>group = 1
>>context=default
>>signalling = bri_net_ptmp
>>channel => 1-2
> 
> 
> So, you're using NT mode PTMP signalling.
> 
> Is the Asterisk box plugging into an ISDN circuit provided by a telco? If it
> is, then use "bri_cpe_ptmp" (for Point to MultiPoint) or "bri_cpe" (for
> Point to Point) instead of "bri_net_ptmp". If it's plugged into a different
> ISDN device and needs to be in NT mode, then try "bri_net" instead.
> 

you pointed me in the right direction.
the card is connected directly to the telco isdn and it should run in TE 
mode, also the signalling should be bri_cpe_ptmp

Thanks