Connecting another mobile phone
If you have authorized more than one mobile phone, you can switch between the individual phones.
You can only switch to another authorized
phone if you are not currently making a call.
Select the mobile phone in the Bluetooth®
telephones list by turning 
the
COMAND controller and press 
to
confirm.
The selected mobile phone is searched for and connected if it is within Bluetooth® range and if Bluetooth® is activated.
Only one mobile phone can be connected
at any one time. The currently connected
mobile phone is indicated by the 
dot in
the Bluetooth® telephones list.
See also:
Emergency call
Important safety notes
A license agreement must exist in order
to activate the mbrace service. Ensure that
your system is activated and ready for use,
and press the
MB Info call button ...
Vehicle data, GL 550
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
...
Safety notes
WARNING
Work improperly carried out on electronic components and associated software
could cause them to cease functioning. Because the vehicle's electronic components
are interconnected ...