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Joined: Jan 2006
Posts: 2,266 Likes: 1
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Got a 424i with a PRI , that the customer is complaining about a clicking noise on incoming calls randomly, I thought it was going to be analog extensions with MSG waiting lights bleeding over, went out and did #409 on all analog , reset CSU/DSU and PRI card and even had the customer power cycle after hours. Just got a call saying that it is still happening, not as often but they still hear it randomly, of course it didn't happen one time when I was onsite. Any thoughts
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Joined: Jun 2011
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Do they have PDKU1's or 2's mate?
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Joined: Jun 2005
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Could be an analog extension set to ring on an incoming call, or a fax extension.
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Joined: Dec 2007
Posts: 2,033
Moderator-Toshiba
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Moderator-Toshiba
Joined: Dec 2007
Posts: 2,033 |
Remember that it could be multiple MSG lights on any given extension. Try doing the extinguish code again, as you saying it lessened in frequency makes me think it's still analog ports. Also, they are the only thing I've ever known to make audible noise on a system.
- Tony Ohio Data LLC Phone systems, data networks, firewalls and servers in Central Ohio. Some people aren't used to an environment where excellence is expected.
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Joined: Jun 2003
Posts: 3,273 Likes: 1
Moderator-Toshiba
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Moderator-Toshiba
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If you think it's an MWI voltage issue then in prog 35 you can turn on LED 4 for all digital and electronic stations and turn off LED 3 for the analog stations. This should help prevent the analog stations from receiving a MWI. Or if you have an RSTU1A or PSTU1A laying around, swap it out with the xSTU you have in there now.
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Joined: Jan 2006
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If it was the MSG waiting on analog wouldn't I hear it standing by the system??
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Joined: Jun 2003
Posts: 3,273 Likes: 1
Moderator-Toshiba
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Moderator-Toshiba
Joined: Jun 2003
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Yes, you would hear the clicking. Is this problem system wide or just one station? Are the station(s) affected digital or analog?
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Joined: Jan 2006
Posts: 2,266 Likes: 1
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All stations and all digital, and it follows the call if it is transfered, I think I will try and replace the PRI card if I have a spair
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Joined: Oct 2011
Posts: 11
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Sounds to me like it is a timing issue with the PRI. Have carrier run test on span, if you don't have a TBerd or anything like that
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Joined: Jan 2010
Posts: 937 Likes: 2
Moderator-Toshiba
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Moderator-Toshiba
Joined: Jan 2010
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I have had faulty RSTU cards cause clicking on the system which could be heard on the lines as well.
Should probably swap out the PRI card as a precaution.
Regards Carl
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