Maintenance
The battery is maintenance-free, i.e., the electrolyte will last for the life of the battery.
Your service center will be glad to advise you on questions regarding the battery.
See also:
Calls with multiple participants
General information
You can switch between calls or connect two
calls to a single conference call. These functions
must be supported by the mobile phone and
service provider.
Accepting a call ...
Switching the microphone to mute
When a call is active, the microphone can be
muted.
1. "Telephone".
2. "Active calls".
3. "Microphone mute"
A microphone that has been switched to mute
is automa ...
Supplementary text messages
Addition information, such as on the cause of a
fault or the required action, can be called up via
Check Control.
The supplementary text of urgent messages is
automatically displayed on the Cont ...
