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MICS PRI Outbound calls

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covcom

covcom

Technical User
May 13, 2002
62
US
I have a Mics 5.0 w/ pri. About a year ago, they were receiving calls but unable to call out, I rebooted the system and the problem was fixed. Now the system needs rebooting weekly or more. Software? KSU? DTI card? Replace it all? Thanks for your help
 
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Are they on a maintenance program ? I would start by getting the Vendor of the PRI involved. Their csu for the PRI may be bad or the C.O. may have some promblem.If that checks out then I would start by swapping out the DTI card and the Cat 5 cable connecting the PRI.If that doesn't work I would then swap out the power supply on the Mics and then the cabinet and so forth. That's a tough one to trouble shoot.
 
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First, check the 'Network' log under maint. Alarm 75's and Evt 330-337 are typically phone company dropping you and then the DS1 syncing up again. If you catch it when it's first down, check the smart jack......that may tell you something ( phone company guy in SAC 2 blocks away tracing wires and yours happens to be loose, .....). Typically, you don't have to reboot the whole system, disabling and re-enabling the card in s/w (maint)is enough. Everything has a threshold and when the DTI card gets overwhelmed with errors, it won't auto-restore. While you may have a problem with on-site eq, keep this in mind: the phone company has 3x-15x the equipment that you do to go bad (repeaters, smartjack, DSX wiring, digital card, potentially miles of cable, Lightspan eq,......). Just check/replace all connections on your side of the smartjack.
 
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Thanks, I'll change out the DTI card and the patch cord.
The local telco has already said the problem is mine.
Imagine that!
Thanks again
 
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I replaced the DTI card and patch cord, The customer has since had to reboot the system. The local telco (embarq) installed the MICS and the PRI. They no longer have a maintence contract. It's been my account for about 3 years.
When Embarq came out and checked there side about 6 months ago, they said everything was ok, they told the customer they needed to upgrade the software. Would you try this?
I have not checked the clocking. How do I check? I may instruct the customer on how to disable the card. This is a medical facility and they reboot before I get there. No alarms have been diplayed.
Thanks again
 
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I would upgrade the sw. Make sure you take them to at least 6.1MR. I usually just go to 7.1.
 
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If I just upgrade to 6.1MR, will the system maintain its current programming?
Thanks again
 
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I found out 6.1 would not work w/ 4.0 Nam, So I went with 5.0....I'll let you know how this turns out.
 
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I know others will disagree, but I've had pretty good success with 5.0 and PRI.

You're right- to get past that, you'll have to upgrade the NAM.
 
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covcom? Has this been resolved yet? I ask due to the fact I've a very similar problem.
 
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It has been about 1 week. So far so good, I feel better after a month or more.
 
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Had to reboot the system this morning, problem still not solved. I guess I'll change out the KSU.
 
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You will first need to get the PRI key code regenrated via KRS system at Nortel if you 1. opt instead to do a re-install the programming (which may clear any bugs) or 2. when swapping the cabinet.



=----(((((((((()----=
curlycord
 
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I'm going through the same thing! I replaced the KSU, T-1 card, service card, smart jack & patch cord. 2nd MICS w/ 5.1 software. Paetec & Qwest, the "carrier" have done intrusive testing and say the circuit are good on thier side. Qwest sent a guy 2 days ago to the site. He tested the NIU, smart jack & patch cord and says everything on thier side is good and that it's the CPE equipment!
On the system I have the CSU turned on, clocking set to Primary, NI-2, ESF-B8ZS. Thier are a few other settings, which I'm not sure what they do, If someone out there has some feedback would be great.;
 
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Ductape. I believe we have a solution. It's worked for our setup anyway . . . 3 weeks with no complaints from the customer.

Hopefully your setup is the same. Ours is a MICS with a PRI connected to a 5ESS switch at the C.O.

This link shows someone else with the same setup and symptoms I had and what was needed to fix it. (having the C.O. turn off b-channel services on the PRI)

Hopefully QWEST has the 5ESS switch and can make this change for you.

Good luck.
 
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