AASTRA DT4x3 for BusinessPhone User Guide EN - Manual (Page 8)

AMT/PUD/TR/0119/1/2/EN 2012-08-13
14 Maintenance ..................................................................................................... 75
14.1 Maintenance of Batteries........................................................................... 75
14.1.1 Battery Warnings ............................................................................... 75
14.1.2 Charge the Battery ............................................................................ 75
14.1.3 Charge Spare Batteries ..................................................................... 75
14.1.4 Replace the Battery........................................................................... 75
14.2 Easy Replacement of Handset .................................................................. 76
14.2.1 Before Starting Easy Replacement Procedure .................................. 76
14.2.2 Easy Replacement Procedure........................................................... 76
14.3 Attach the Hinge-type Clip......................................................................... 79
14.4 Attach the Swivel-type Clip........................................................................ 79
14.5 Attach Cover for No Clip............................................................................ 80
15 Troubleshooting............................................................................................... 81
Appendix A: Bluetooth Headset.......................................................................... 84
Appendix B: Telephony Function Codes............................................................ 89