Siemens OPTIPOINT 500 - Manual (Page 19)

P31003-E8400-A100-3-7620
Service Manual
2-5
Product Description
Telephones
2.3.2 optiPoint 500 economy
Figure 2-2 optiPoint 500 economy
Controls Connectivity
●
12 function keys with LEDs
● Open listening
● Alphanumeric LCD display with
two lines and 24 characters per line, tiltable.
● 3 dialog keys for interactive user prompting: “Yes”,
“Back” and “Next”
●
2 adjustable keys (plus/minus) for
– ringer volume,
– ringer pitch,
– alerting tone,
– display contrast
● Suitable for wall mounting
None
Table 2-2 Features of optiPoint 500 economy