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Setting and dialling emergency numbers, Operating the handset, Switching the handset on/off – Siemens C450 IP User Manual

Page 18: Activating/deactivating the keypad lock, Control key

Setting and dialling emergency numbers, Operating the handset, Switching the handset on/off | Activating/deactivating the keypad lock, Control key | Siemens C450 IP User Manual | Page 18 / 39 Setting and dialling emergency numbers, Operating the handset, Switching the handset on/off | Activating/deactivating the keypad lock, Control key | Siemens C450 IP User Manual | Page 18 / 39