Ericsson F251m, User Manual, Page: 3 / 70

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11.4.2 Making a second call ............................................................... 29
11.4.3 Receiving a second call ........................................................... 29
11.4.4 Conference calls....................................................................... 30
11.4.5 Connecting active and held calls ............................................. 30
11.5 Phonebook (abbreviated dialing)............................................. 30
11.6 Voice mail................................................................................ 31
11.7 Sending tone signals ................................................................ 31
11.8 Controlling call time (minute minder)..................................... 32
11.9 Emergency number (Hot line) ................................................. 32
11.10 Two voice lines (Alternate Line Service)................................ 33
11.11 SIM card security..................................................................... 33
11.11.1 To manage your SIM card ....................................................... 33
11.11.2 To unblock your SIM card....................................................... 34
11.11.3 To change your PIN................................................................. 34
11.11.4 To unblock your SIM card while changing your PIN ............. 34
12 TROUBLESHOOTING AND FCT INDICATORS ............... 35
12.1 Light indicators ........................................................................ 35
12.2 Audible tones ........................................................................... 38
13 FCT TECHNICAL DATA ...................................................... 39
14 FCT ACCESSORIES .............................................................. 42
14.1 ISDN Adapter FI12.................................................................. 42
14.2 Display Adapter DA20 ............................................................ 43
14.3 Antennas .................................................................................. 43
14.4 Power supply ........................................................................... 43
15 ANNEX: PC data configurations............................................. 45
15.1 Windows 98 GPRS set-up ....................................................... 45
15.2 Windows NT GPRS set-up...................................................... 50
16 SAFE AND EFFICIENT USE ................................................ 57
16.1 Product care ............................................................................. 57
16.2 Antenna care ............................................................................ 57
16.3 Radio frequency energy........................................................... 58
16.4 Electronic devices .................................................................... 58
16.5 Potentially explosive atmospheres........................................... 59
16.6 Power supply ........................................................................... 59
16.7 Children ................................................................................... 60
16.8 Disposing of the product.......................................................... 60
16.9 Battery information.................................................................. 60
16.10 Disposing of the battery........................................................... 61
16.11 Moving or storing the FCT ...................................................... 61
16.12 Accessing the battery compartment......................................... 62
17 LIMITED WARRANTY......................................................... 63