User manual

Chapter 4: Troubleshooting

I am still having problems and the telco tells me it is my equipment.

The first thing to do in this situation is to test your equipment.

1. Plug in a loopback cable. (A loopback cable is a cable that has pin 1

going to pin 4 and pin 2 going to pin 5.) Plug the cable into the span

and wait for its LED to turn green.

2. Stop Asterisk and edit system.conf by removing the lines defined for

your card and replacing them with the following:

span => 1,0,0,esf,b8zs

clear = 1-24

Or if you have an E1 span:

span => 1,0,0,ccs,hdb3

clear = 1-31

Navigate to the tools/ directory in your DAHDI complete source

directory and type:

# make tests

Followed by:

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