User guide

DT690
23 Installation 125
23.1 Check for completeness 125
23.2 Charging the Battery 125
23.3 Charging Spare Batteries 126
23.4 Replacing the Battery 126
23.5 Chargers 127
23.6 Headset 128
23.7 Hinge-type Clip 128
23.8 Swivel-type Clip 129
23.9 Bluetooth Headset 129
23.10 Portable Device Manager 133
24 Useful Hints 135
25 Reference 137
25.1 Terminology 137
25.2 Phone Signals 137
25.3 Maintenance 138
25.4 Technical Specifications 138
25.5 Spare parts and Accessories 143
26 Troubleshooting 145
27 Glossary 149
28 Telephony Service Prefixes 151
1424-E
N/LZT 103 0 90 Uen A1 2008-10-2 4