[Asterisk-Users] Inter-Tel AXXESS failure: HDLC Bad FCS (8) on Primary D-channel of span 1

[Gavin Hamill]

Yep, another list posting on this topic :)

All the messages I've read on this are from people experiencing these errors 
in quiet times - I get them as soon as I plug a port on our TE410P to an 
Inter-Tel AXXESS PBX..  and I get them continuously... 

I'm just sticking an * box in between ISDN30e (we're in the UK so euroisdn) 
and the PBX.. and whilst the telco ISDN30e side works like a charm [1] I 
simply can't get a reliable link to the PBX..

I've tried two different T1 crossovers (1-4, 2-5) with identical results and 
zapata.conf is indeed using signalling=pri_cpe for the telco ISDN30e and 
pri_net for the PBX

Digium support have taken me through loopback testing which came out perfect, 
and the card is not sharing any IRQ, yet this error renders the card 
useless :( Digium are reluctant to accept a return and replace the card since 
they don't believe it to be at fault - and neither do I.

I see the same behaviour with 1.0.9 asterisk / libpri and 1.0.9.1 zaptel... 
and CVS-HEAD versions of everything.

Any ideas/advice would be warmly received right now!

Cheers,
Gavin.
[1]  http://www.voip-info.org/tiki-index.php?page=UK+Asterisk+Details