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#618076 03/22/18 01:11 PM
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Daniel Offline OP
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I have a customer with a DXP Plus. every once in a while a call will ring in and the phones will ring, the customer will try to answer and they will only get dialtone. The person calling in hears a couple of rings, and then silence. I have replicated this one time. The provider has the hunt group set correctly, they do not have call waiting, or telco provided voicemail turned on. When I replicated the problem I was connected to the system and could see the realtime smdr records. there was no indication that the call that I placed that failed was ever seen by the smdr recorder.


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Is it possible the caller hung up or was disconnected?

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Daniel Offline OP
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No. I experienced this as a caller into the system.


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Is it PRI or Pots. Who is the carrier?


Jim Hoey

SST Communications
597 West Montauk Highway
Lindenhurst, New York 11757

631 956-0100

www.sstcom.com

Business telephone systems on Long Island and New York City like Comdial, Vertical, Avaya, Panasonic
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Have you followed: "Troubleshooting The DXPT1 Digital Carrier Transmission Option On The DXP Plus Digital Communications System"?

I will send you a PM with a link to view the document. The file also contains other pertinent information on the DXP Plus for you viewing pleasure


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Daniel Offline OP
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Sorry I should have mentioned sooner that these are POTS lines.


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Daniel Offline OP
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And the Carrier is Charter Spectrum (local cable company)


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Without seeing a Black Box capture it would be hard to diagnose. Could be a fluke programming corruption of one phone in the hunt group or a hardware issue with the SRV-PLS or CPU board.


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Daniel Offline OP
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After playing musical lines. I believe that it may be isolated to an individual line card. possibly a single port on that card, but as they have more line cards than they are currently using I am going to fully take that one out of service.


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Line cards cost almost nothing. They usually dont fail this way but worth a shot


Jim Hoey

SST Communications
597 West Montauk Highway
Lindenhurst, New York 11757

631 956-0100

www.sstcom.com

Business telephone systems on Long Island and New York City like Comdial, Vertical, Avaya, Panasonic

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