DS1 Yellow Alarm, Constant Busy Signal for External Calls 3

[NoMagixian]

Hi all, I'm new to this forum (though I've searched it before several times for answers). I'm having an issue with my Merlin Magix system that just started occurring earlier today (I have made no changes to our system, and am the only one who manages it). I have received reports of a busy signal for external calls. I have tried both dialing out and dialing in to/from a cell phone, and am receiving nonstop busy signals.
I checked WinSPM, and found the attached error. I have cleared the error in WinSPM, which has caused the red light to go off on the slot as well as the processor, but the busy signal still persists. Looking at (what I believe to be) our main Adtran, I see it has an ALM light on.
I've read about what the error entails. The manual says:

Troubleshoot the T1 trunk. If problem persists,
check the CSU and the DS1 configuration (the
framing format). If problem persists, escalate
to your technical support organization.

But I'm not exactly sure what/how I should troubleshoot. What should my next course of action be?

As my username suggests, I'm no expert with this phone system, or phone systems in general. I have had limited interaction in the past, and mostly used VoIP at other companies. I don't have a great grasp on our phone system, as the documentation that was left for me was very limited and outdated. This has left me in a bit of a pickle, so I figured I would reach out to the forum that I usually end up getting my answers from.
Please let me know if there's any other info I can provide.

 

[Telecomboy]

Yellow Alarm is a far end issue. Have your telephone service provider check their end.

 

[NoMagixian]

Thanks, I reached out to them, and they finally got back to me letting me know that they were having issues. They replaced a DS3 card at their end and all is well now!

 

[Dexman]

A Yellow alarm could also indicate a one-way open. So you can see the provider's switch, but it can't see you.

One thing to consider...If you have some copper POTS lines, have the ability to connect them to the Merlin and your provider has the ability to add call advancing, consider adding that feature. That way, if the circuit drops, incoming calls will still get to you by an alternate way.

I "FEATURE 00"

http://dexman.webs.com/

 

[realfoneguy]

You know I bought a invaluable piece of test gear a Sunset T 10 for $130.00. It helped me to emulate the DS1 card in the Magix to see that the new T1 was ordered and delivered wrong to the site. Once things were made correct, I could check each channel for function. Pretty cheap gear considering I have seen the same thing for 2 or 3 grand as well.[pre][/pre]