4 answer the call, 5 adjust the volume, 6 talk hands-free – Verykool i235 User Manual
Page 14: 7 call waiting, 5 dialer, 6 message, 1 write message

5
Press dial key to make international calls.
Note: International dialing code of some networks is not "+"
sign, please be discretion.
4.4 Answer the call
If there is an incoming call, Slide answer or reject calls
.
4.5 adjust the volume
During the call you can press navigation left and right to
adjust the volume.
4.6 Talk hands-free
During the call you can directly to open or close hands-free.
4.7 Call waiting
Conference call feature requires opening Call Waiting,If the
network supports call waiting and you start this feature,
During a call when there are new calls you will hear the call
waiting tone, you can answer or reject the new call. Enter the
"call waiting" feature to enable or disable call waiting.
5 Dialer
Click to dial interface.
Input number can choose ‘all' ‘send
MMS’‘send SMS’.
Click on the options can choose:1、Call 2、save to phonebook
3、Dialer search.
6 Message
6.1 Write message
Text message: