sundance-communications.com/forum Forums TDM Business Telephone Systems Toshiba Telephones & Systems Anybody every had this trouble and had it be an issue with the phone system?

I have posted this before but didn't come up with a solution so I am trying again to see if anyone else has ever had this problem and had it be an issue with the phone system. I am inclined to believe it is a CO line problem. Since we don't provide the service I don't have access to CO equip or cables. The sub has a 424i with 5 BDKU, and 3 RCOU/RCOS piggybacked, 20 CO lines and 32 DK telephones. For the most part the CO lines are put into line groups of 3 lines each. Most of the line groups ring approx. 4 phones....that's just the way they separate the different parts of the business. They have called a couple of times complaining of crosstalk between the lines in one specific group. This customer is in a town 10 miles away and out of our exchange so I have no access to main office equipment. When I went over to check things out, of course everything worked just fine. It doesn't happen all the time, just enough to be annoying. They called their service provider and was told "It's your phone system." I have approx 40 toshiba systems out and have never experienced this problem DUE TO THE PHONE SYSTEM. As far as I know the calls are not being conferenced together. My question is whether anyone else has ever run into this and had the trouble be an issue with the Toshiba system. Thanks for your input.

You could try to install chokes on the line cross-connects into the system. Sometimes that can be an issue. Also make sure that you have a good earth ground on the KSU. Also, I have had troubles every now and then with "Hot" lines from the CO. You can check with a line Db meter. Or, you can also try swapping CO cards around in the system and see if the trouble follows the CO cards or stays with the lines themselves.