Ra mobile phone with "Twin card" is logged
intothe network with the second SIM card at
th e same time
HD Voice
®
RTo impr ove vo icequality, the multimedia sys‐
te m supports telephone calls in HD Voice®.
RIn order touse this function, the mobile
phones and the mobile phone network pro‐
vider of the person you are calling must sup‐
port HD Voice
®.
Depending on thequ ality of the connection, the
vo ice quality may fluctuate.
Connecting a mobile phone (Blu etoo th
®tel‐
ephony)
Requ irements:
RBluetooth®is activated on the mobile phone
(see the manufacturer's operating instruc‐
tions).
RBlue tooth®is activated on the multimedia
sy stem (→page 233). Multimedia sy
stem:
0086 3 K R Q H00CFá &