To activate and de-activate the the external line access code

Press the UP button to select BASE.

C OK

Press OK.

Press the DOWN button to select

BASE SETTINGS.

C OK

Press OK.

Press the DOWN button to select Phone Line.

C OK

Press OK.

Press the DOWN button to select

PREFIX.

COK Press OK.

Press the DOWN button to select Status.

COK Press OK.

Press the to activate or de- activate. When active the will be shown on the display.

Helpline

If you are experiencing difficulty, please call the BT On-Air Helpline on 0845 601 2476.

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BT 1100 Executive manual Prefix