set your phone to only accept your SIM Card

You can also stop your phone from being used if a new SIM Card is inserted.

1Press Menu and scroll to Setup. Press Select.

2Scroll to Security and press Select.

3Scroll to This SIM only and press

Select.

4You will be asked to enter your phone code. The first time you use this feature, you enter any number with four to eight digits, which becomes your phone code.

5Press OK. Repeat the entry and press

OK again.

6Press Change to switch between On and Off.

avoid accidental calls by setting your keypad to lock automatically

Your phone’s keypad is preconfigured to lock automatically one minute after you last pressed a key.

To deactivate the automatic keypad lock:

1Press Menu and scroll to Setup. Press Select.

2Scroll to Keys and press Select.

3Scroll to Auto key lock and press

Change.

If the automatic key lock is deactivated, you can manually lock the keys by pressing and holding # at the main display. Repeat to unlock the keys.

Note: You can also activate or deactivate key tones using the Keys menu.

10.6

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Siemens C55 manual Set your phone to only accept your SIM Card