Hi,
I'm having problems getting our server to work with our BT ISDN30 box. We are using a Digium TE110P card to connect to the ISDN box on the wall. The card is configured as an E1 (strap on). I've made the T1 crossover cable ( well, made two variations ) and neither work. The light on the Digium card flashes red and the red LED's on the ISDN box stay lit. I've tested the configuration and all modules load ok. Done a ztcfg -vvvvv and things look ok. Done zttest and get around 99.7% - 99.9%. After loading asterisk I did a zap show status and alert is red.
After googling I found this statement:
RED: Loss of signal (LOS): The equipment shall assume "loss of signal" when the incoming signal amplitude is, for a time duration of at least 1 ms, more than 20 dB below the nominal amplitude. The equipment shall react within 12 ms by issuing AIS.
The question is, is this a configuration issue, cable issue or BT issue.
Digium's site is down so couldn't look there :-(
One of the diagrams I used is here:
http://www.gcom.com/home/documents/faqs/cables_&_t1.htm
The other diagram ( can't seem to find that now ) used 1-5, 2-4 etc.
Has anyone seen this problem?
Thank you in advance.
Phil.
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