EN ©
mPTech 2022. All rights reserved. Rumba 2
22
Network fail
In areas where signal or reception is weak,
calls may not be possible. Also receiving calls
may not be possible. Move to another
location and try again.
Poor sound quality
while on the
phone.
Make sure that the speaker and mic. are not
covered.
I cannot hear the
caller./ The caller
cannot hear me
The mic. should be close to mouth.
Check if the built-in mic. is not covered.
When a headset is un use, check if it has
been connected correctly.
Check if the built-
in speaker isn’t covered.
The connection
cannot be
established
Check if the typed-in phone number is
correct.
Check if the phone number entered to the
[Phonebook] is correct.
Enter the correct phone number if necessary.
Device maintenance
Follow the instructions below.
•
For cleaning use only a dry cloth. Never use any agent with
a high concentration of acids or alkalis.
•
Use the original accessories only. Violation of this rule may
result in an invalidation of the warranty.
Correct disposal of electrical and electronic equipment
The device is marked with a crossed-out garbage bin,
in accordance with the European Directive
2012/19/EU on used electrical and electronic
Equipment
(Waste
Electrical
and
Electronic
equipment - WEEE). Products marked with this
symbol should not be disposed of or dumped with
other household waste after a period of use. The user is obliged
to get rid of used electrical and electronic equipment by delivering
it to designated recycling point in which dangerous waste are
being recycled. Collecting this type of waste in designated
