8X24 giving out weird tone on one trunk

[EddieDuece]

Has anyone had a issue with 8 OPX(analog)lines, into a 8X24, when dialing another extension you here something like a fax tone. You hang up and call back, you get the same tone. This doesn't happen all the time, but once it does, that line will give the tone call after call. I have 8 analog lines feeding this system. Only the first trunk has this issue, and it only just started to happen a week or so ago. I jumped on the trunk before the Norstar and all woked fine.....no tones?

 

[PERRYPJ]

1ST THING YOU DO IS MOVE THE LINE TO ANOTHER TRUNK, IF IT FOLLOWS THE LINE GIVE IT TO TELCO

OLD ROLMEN WORKING ON NORTELS

 

[curlycord]

Most likely it is ATA's on one end and Trunks on the other system.
You need to do some troubleshooting....
First which side has the problem? the side that presses line 1 to call the other side or the site that intercoms an ext number to get accross?

Go to the system that use the trunks and swap line 1 with line 2 and test, if issue is with line 2 now then you have omitted that system being at fault.
If issue is still one Line 1 then you have a Truck Card or KSU issue.
If issue is with line 2 now then reverse the 2 lines back to normal and go to the other site and swap the OPX Line 1 on the ATA with OPX line 2 on it's ATA and test, if the problem followed and is on the Line 2's ATA then call the Telco and report the circuit of the OPX.
If the problem stayed on OPX 2 ATA for line 1 then try replacing that ATA or move it to another port or check that the ATA's ext is not forward to any modem or fax device.

 

[cook1082]

Is there a RAD on the unit.

 

[bostech]

Very interesting.

I just recently ran into this a couple of weeks ago with an 8X24 DR5.1, NAM, 2 TM's, 1 SM. 11 POTS lines.

High pitched tone on line 1. Moved circuit to line 12, no tone. Replaced KSU using same software cartridge. Tone still on line 1. Stripped all equipment off KSU. No modules, NAM, expansion card. Just new KSU w/ software cartridge. Tone still on line 1.

Ended up putting everything back together and leaving line 1 circuit connected to line 12 port.

Any thoughts would be appreciated.

Thanks.

 

[EddieDuece]

I have done the same to no avail. Moved the trunk off of the KSU to a port on trunk module, still get the tone. Power cycle the system, still tone. The weird thing is that I pulled the trunk from the system completely, and it works fine all day long. Definately something with the Norstar...

 

[jerryreeve]

try this to help you isolate:

assign the outside line as a button appearance on a phone
call the number and wait for the tone
when you hear the tone press the button on the phone to see if there is a DN answering that trunk

hopefully you might find that some kind of modem is assigned somewhere and answering.



----------------------------
JerryReeve
Communications Systems Int'l
com-sys.com

 

[RikRodgers]

cook182's question still goes unanswered- Is there a RAD, or an ATA with that line ringing on it? (Though, I think that's what jerry's getting at, too.)

 

[jerryreeve]

pretty much or just a phone that was bad.

----------------------------
JerryReeve
Communications Systems Int'l
com-sys.com

 

[EddieDuece]

No, there is no RAD or ATA? We are now talking about just replacing the system. This one seems to have everyone puzzled?

 

[curlycord]

You asking us if you have a RAD or ATA on the system?

I would presume you have ATA's? you have not specified what your setup is or answered if you have done exactly as I mentioend above....details detail details as to what you have done pls.

If there is a RAD press F9** I think , if asked for password you have a RAD.

Lets also pretend I have this sytem on my test bench, if I hook up an ATA to a trunk port to simulate dial tone and I get no issues then I take it to site and hook up just the OPX to that trunk port and there is no issue then hook up the other end of the OPX to the ATA and get an issue I would think it's the ATA or the KSU at the remote site.

 

[DueE]

What is the SP code (system version under Maintenance) for this system?

DueE

 

[cook1082]

Just noticed you said you move the line with a tone to other trunk ports and you get the tone. And disconnected from the system it's ok.I suppose the trunk port it came from works with another line hooked up to it? There mite be a voltage issue. Do you have the nortel Analog line tester.

 

[DueE]

what's the sp version of this system?

DueE