[asterisk-users] E1 w/ TE420B EC

trebaum trebaum at telepaths.org
Tue Aug 25 13:55:56 CDT 2009


On Aug 24, 2009, at 10:49 PM, Michel Verbraak wrote:
<snippage of stuffs>
> As I see you have specified nl as defaultzone so I expect that you  
> are using a ISDN-30/15 line from provider KPN in the Netherlands.
> If so then remove the crc4 option from the span line in /etc/dahdi/ 
> system.conf.

> KPN is not using the crc4 checksum and therefore the card is not  
> getting the wrong checksum on the lines and so they get a red alarm  
> status.
> After the change reload dahdi and your lines should change colours.
>
> If this is working for you please answer to the mailing list so  
> people in the future will find it. The next time please specify the  
> type of telephoneline and provider.
>
> Regards,


Thank you for that suggestion Michel.  I removed the crc, though that  
didn't help.  Here is the info about the telephone line and the  
provider you asked for.

Provider: Colt Telecom

Kind of circuit: RJ45 Cat5 / ISDN30
Z-End: AMSTNLAQ-CGND0002023039  / A-C.23.39

Does this give you a better idea?

~T



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