Muting The Ringtone Or Calls; Viewing Past Calls; Troubleshooting - Renkforce DF-DP-400 Operating Instructions Manual

10.12 Muting the ringtone or calls

1. To mute an active ringtone or a caller during a call, press the "MUTE" button.
The indicator light (4) will switch on.
Æ
2. Press the "MUTE" button again to unmute the ringtone/call.
The indicator light (4) will switch off.
Æ

10.13 Viewing past calls

1. Pick up the receiver (1).
2. Use the arrow keys to scroll through incoming calls.
3. To display outgoing calls, press the "OUT" button.
4. To call the selected number again:
– Press the "RD" button.
OR
– Press the
OR
– Pick up the receiver (1).
Note:
– You can delete the selected call by pressing the "DEL/R" button.
– You can mark calls as "VIP" to prevent them from being deleted. Select the desired call, and then press the
"PAUSE / VIP" button.
– "VIP" numbers also have a different ringtone.
– To delete all entries in the respective list (including all VIP numbers), press and hold the "DEL/R" button for
3 seconds.

11 Troubleshooting

Problem
No sound, or there is noise or
interference on the receiver.
The display backlight does not
work.
The display contrast is low.
button to make a hands-free call.
Cause
The product is not connected
properly.
There are no batteries inserted, or
the battery level is low.
A low contrast setting was chosen.
Solution
Make sure that all cables are
connected properly.
Insert new AA batteries.
Choose a higher contrast setting.
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