Outbound "Static" on Long Distance Calls

[pspenn]

I have 8 AT&T PRI's in a single trunk and signal group with a primary D and Backup D. My system is a G3r rel.11

7 of the 8 PRI's can make and receive LD calls with no problems. The 8th one (4th in the line) can only receive calls. When we try to dial out using one of those channels, I hear what appears to be very loud and bad static. AT&T is swearing it's not there problem as there setup and tear down messages look fine and show the call processed.

Since the other 7 are working and they are in the same trunk and signal group as this one, I am thinking it's still an AT&T issue. Are there other any other settings at the trunk level which might cause this problem?

Thanks,
Perry

 

[ezncool]

have you done some testing in your pbx? is this something that was working before then suddenly broke or has it been like this since bring up? Have you changed your T1 board? CSU or cable connecting the CSU to the smart jack? Just a thought.



ezncool
I have no technical solution to your management problem

 

[pspenn]

These were previously MCI circuits and are now AT&T... However, I moved the DS1 card to another slot and made some progress from the original problem of no audio either direction. Now it's just static one way...

I am finding it hard to believe that all 8 were fine with MCI and now 1 is causing problems with AT&T and they are saying the problem is mine. But stanger things have happened...

I have had problems with this circuit since it was installed...

Thanks,
Perry

 

[ezncool]

if you have avaya maintenance, you may want to put together a vendor meet with ATT and AVAYA. The CO's seem to think that talking to avaya can provide them more information than we can. We all know that the CO's have self-healing circuits (hah!) because it gets fixed without them doing anything to it. sorry i have no more info..good luck.



ezncool
I have no technical solution to your management problem

 

[pspenn]

Thanks...
I will play around a bit more before I request a disconnect and a replacement with a new circuit... That will get some attention and will also get me back to provisioning where the problem probably sits...

Thanks again,
Perry

 

[tkinney]

I love the self healing circuits, the ones that are never theirs! I hope this helps you because I just spent over a month of literal hell arguing back and forth on loud, severe and intermittant static on one DID trunk member out of 5 on the same trunk. Of course the CO said that all tested clear to them and the problem was in our building or switch. Turns out (after many engineers, techs etc.) that there was a problem in one of their main CO offices 300 miles away. Their explanation was I had a "translation issue" with that circuit. If I were you I would insist that they do testing on their end until they find it, the problem could be way out in the field like mine was. My first tests in Chicago came back fine (or so he told me through much static) but I insisted (theres that ugly word insist again) that one of the testing techs dial into the bad line until they heard the noise and then escalate it from there. "Aha" he said through much static, let me get someone on this! Within a few days the "it's not our equipment" circuit was fixed, voila the translation issue. All of this testing was done AFTER 10 trips by LEC techs and managers, 3 trips by Avaya, rewiring at the dmarc and a cost of much $ to LEC to switch to a light span!!!! I thank God that my boss believed in my judgement when I had to keep telling him it's not our equipment even after a service manager from LEC called my boss and told him I was wrong, it's NOT THEIR equipment. I still have my job and they were wrong again.

Good Luck and please let us know how you come out.

Tina