I have a customer whom I installed an STS system for about 6 years ago. At one point in the past we had an issue with CO line port 2. If one employee was on line 1 and the other picked up line 2 and made a call, they could hear each others coversations. Found out CO port 2 was bad and swicted over to CO port 4 and seemed to solve the issue. However today the customer called and said Line 1 was not working and 1 phone had a strange display. I power cycled the system and the phone display came up working and line 1 started working. Before the reboot I disconncted the Line 1 from the system and had no dial tone at the dmarc. Once reconnected and rebooted there was dial tone. The dial tone is nosiy and scratchy and told them to call Qwest. However they say they are now having the carry over on lines 2 and 3, or actually ports 3 and 4 on the KSU. Any ideas? Should I throw in a new CO card?

TekLink Solutions
Havre, Montana 59501