User's Manual

In a call, you can raise or lower the volume by using the volume keys.
Turn the speaker on or off
In a call, touch the button to turn on the speaker, and touch it again to turn off speaker.
Add one call
In a call, touch the button then dial a number and touch the phone icon to add one call
and put the current caller on hold. This function requires the support of the network
operator.
Open the dialing keypad