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Fixed dialling allows you to select which numbers can be called from your phone. When fixed dialling is turned on, you can only make calls to your fixed numbers and to emergency numbers. Incoming calls aren't affected. Follow these instructions to add fixed numbers.
You need to turn on fixed dialling to use this function. Click here for information on how to turn fixed dialling on or off.
Find "Fixed dialling numbers"
Add a number
Key in the required name.