Mercedes-Benz S-Class 2020 Owner's Manual page 337

334 MBUX multimedia system
The SIM card used is not compatible with the
R
network available
A mobile phone with "Twincard" is logged
R
into the network with the second SIM card at
the same time
The multimedia system supports calls in HD
®
Voice for improved speech quality. A require‐
ment for this is that the mobile phone and the
mobile phone network provider of the person
you are calling support HD Voice
Depending on the quality of the connection, the
voice quality may fluctuate.
Further information can be obtained from a
Mercedes-Benz service centre or at: https://
www.mercedes-benz.com/connect
Telephone menu overview
®
.
1
Bluetooth
connected mobile phone/of the mobile
phone
2
Bluetooth
connected mobile phone/of the mobile
phone (two phone mode)
3
Signal strength of the mobile phone network
® device name of the currently
®
device name of the currently
4 Battery status of the connected mobile
phone
5
Options
6
Messages
7 Calls up my devices
8 Numerical pad
9 Starts contact search
Telephony operating modes overview
Depending on your equipment, the following tel‐
ephony operating modes are available:
A mobile phone is connected to the multime‐
R
®
dia system via Bluetooth .
Two mobile phones are connected with the
R
multimedia system via Bluetooth
phone mode).
You can use all the functions of the multi‐
-
media system with both mobile phones.
A mobile phone is connected as the car
R
phone.
®
(two