Let me first say I am not very versed in our Telrad system, but I used to be able to use the attendant console and enter the COS to make changes to an extensions ability to access long distance. Recently every time I try I get a "Please try later" message. I called the company that we have used for service in the past and the guy could only recommend rebooting the phone system. This sounds easy enough but is there any other suggestions? System is a Digital Key BX, I believe version SB6.03 based on what is written on the box itself.