Seltatel NETfon Manual Del Usuario página 58

12. Speaker volume
To regulate the volume of the speaker press the key [confirm], on the
display it is shown a bar which shows the current volume, to increase
it or decrease it press [right arrow] or [left arrow], confirm pressing
the key [confirms].
13. Headset enabling
Not used.
14. Headset volume
Not used.
15. Ringer volume
To regulate the volume of the ringer press the key [confirm], on the
display it is shown a bar which shows the current volume, to increase
it or decrease it press [right arrow] or [left arrow], confirm pressing
the key [confirm].
16. Ringing tone
You can navigate, both for internal call tone and for outgoing call tone,
among 13 ringers using [right arrow] or [left arrow], confirm pressing
the key [confirm].
17. LCD contrast
To regulate the contrast of the display press the key [confirm], on the
display it is shown a bar which shows the current contrast, to increase
it or decrease it press [right arrow] or [left arrow], confirm pressing
the key [confirm].
18. Language
To modify the language of the strings which appear on the display,
press the key [confirm], it will appear the language in use at present,
to modify it press [right arrow] or [left arrow], confirm pressing the key
[confirm].
19. Quality of service
To enable Quality of service press the key [confirm], on the display it
is shown the current value (yes/not), to confirm or modify the data
press [right arrow] = yes or [left arrow] = not , confirm pressing the
key [confirm].
20. About
56 NETfon - Operating instruction