We will be closed for Thanksgiving, Christmas and New Year's Day. As always, the emergency support line will be open.

Time Change Instructions

The instructions for changing the time on your particular phone system are listed below. Select the system name to see the instructions.

If you are not sure about your system model or your system is not listed either email us at service@askbts.com or call the BTS Service Department at (205) 290-8301 and the BTS help desk will assist you with determining your system or assisting you remotely with your time change (service fees may apply).

Note: Change the clock from the attendant's station – usually extension 10, 100, or the first extension in the extension number range (i.e., 200 for 200 to 299 range, etc.) – with handset resting on the cradle and the phone not in use.


NEC Elite IPK II / NEC SV8100


NEC IPK / NEC ELITE 192 / NEC ELITE 48

The instructions for changing the time are the same for these systems.


PROFESSIONAL LEVEL I / LEVEL II / 120


NEC Electra 824


Comdial FX


Comdial DSU


Comdial DX-80

Note: BACK, NEXT, SHOW, CHG, BKSP, and SAVE refer to the three buttons below the LCD display.


View of downtown Birmingham, Alabama from Vulcan Park

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(205) 290-8400