switel TF535 Bedienungsanleitung Seite 19

OPERATING ELEMENTS
1 Display
2 +/- Up/Down
3 SET
4 Call Duration / Stop Watch
5 Index for Speed Dial Numbers
6 Direct call keys
7 Two-touch dialling (+ keys 0-9)
8 Store Button
9 Mute Button
10 R-key (Flash)
11 Redial Button
12 Boost function (+35dB)
13 LED
14 Volume control receiver
15 Ringer tone Control
16 Ringer volume control
19