3 Operating Elements
1
Display
2
Adjust setting button
3
Phone book
4
LED, phone is ringing"
5
Delete button
6
Redialling
7
Earpiece
8
On−hook contact
9
Digit keys
10 Hash button
11 One−touch dialling buttons
12 Socket for helix cable
13 Microphone
14 R−button
15 Star button
16 Receiver volume" slide control
17 Ringing volume" slide control
18 Wall mounting
19 Telephone line connection socket
20 Battery compartment
6
5
15
14
13
20
18
19
18
12
TF 510
17
1
2
3
4
7
8
9
10
11
12
16
35