I am using a Digium B410p ISDN card, which I have been trying to get working.
My current setup is as follows: I have connected the trunk provided by my provider to an NT, and am using a straight cable to connect the NT to the card according to the specifications in the manual. Also, I have set the card jumpers to NT mode from default TE, installed all drivers etc.
However, all the LEDs on the card are still blinking red. From my understanding, the LEDs should be blinking green, if my hardware setting is working right.
Can it be a provider problem, or is it a problem at my end ( I am in India, and am using BSNL as the provider). I have checked that I am getting 96 V current at my end, so at least the provider is giving me the current.
I guess I need the green lights at least to progress from here.
Any ideas how I proceed or how I troubleshoot this?
I was doing it wrongly, I have corrected my error and am using the right TE configuration now.
However, I am still not getting the green LED that I should. I suspect that it might be some cable problem. Here is the configuration of the straight cable I am using to connect the NT to my card:
3 - TX+
4 - RX+
5 - RX-
6 - TX-
This is from the manual itself. Also this is a straight cable, and not a cross one.
Is this right? What else can I do to troubleshoot this, my service provider is not being of much assistance here.
On my NT, there are only two lights. One is power, which is on, and the other is U/S status, which is off.
On another note, I did not take the NT from my supplier. I just got an ISDN trunk from my supplier (BSNL India), and bought the NT from somewhere else. On my trunk, I have measured the voltage and it shows 96 V, which is correct.
Do I have to use a specific NT? Since I am getting the correct voltage, I am guessing that I am getting the current from the supplier. ( I don’t know what L1, L2 are, I called up my supplier and they were pretty clueless as well) In that case, does the fault lie with the NT?
Anyhow, I do not think I need to pay attention to my software setup, since my hardware setup is not working as of now.
According to my understanding, the green light on the card should come on irrespective of the software setup, if the card is able to receive signal from the exchange.
You are correct, the blinking means no l1 or l2 which means you dont see any physical network (L1) and as such no data fill (L2) it may be that the NT is set to U, You need to get a engineer with a ISDN testbutt to check the line.
in the mean time What you could do is make up a ISDN2 loopback and check that the supplier can see it, It may be that you havent set the NT correctly.
Turned out that the fault was with the NT. We replaced the NT with another one, and then it just took a reloading of the drivers to get everything working.
I just realized that my dial out was working but dial in is not working!
This is pretty surprising.
When I dial in from my cell phone on my isdn number, I get a message “Your call cannot be completed due to congestion in the network”. The light on my card flickers from static red to green and back to static red again.
My extensions.conf file has the following entry for default calls:
The asterisk console actually tries to play hello-file (which exists), before abruptly exiting. ( I never hear any part of the file on my cell-phone, all I hear is an automated congested network warning from my service provider.)