Nokia 2170 - Manual (Page 23)

16
To mute your phone’s microphone
If you wish to put a caller on hold during a phone call, you
can mute your phone’s microphone.
During an active call,
1) Press and hold left
for a
second
2) Press W or V to 0XWH
3) Press 2.
Note: This feature is only available during a call.
To unmute your phone’s microphone
Follow the same steps as above, except press W or V to
8QPXWH and press 2..
For more information on DTMF tones, please see “Touch
Tones” on page 50.