This is a feature on your phone line called Ringback, which indicates that you have a New Voice Mail. To access the message press *98 on your phone and follow the prompts. If you wish to disable this feature please call Mitchell Telecom @ 605-990-1000.
When you hear the Call Waiting indicator while your on the phone. Press the Flash button or depress the Flash Hook for a split second to switch calls. Repeat the same function to return to the first call.
The first thing that you will want to check is that all phones are on hook. If all phones are on hook and you still do not have dial tone please get a hold of the Mitchell Telecom Business Office at 605-990-1000 or the Mitchell Telecom Trouble Line at 605-990-1111. You can also stop by the Mitchell Telecom Business Office at 1801 N Main St inside the Palace Mall.