User's Manual

10
(e)Last Number Re-Dialing:
In the stand-by mode, Press and hold Volume Down button for 2 seconds, you will hear
2 short tones, the last number you dialed will be re-dial out. If the CK21 has
connected to 2 phones, press and hold Volume Up button for 2 seconds will start last
number re-dialing of phone 2.
Note:
If the CK21 has connected to 2 phones, when one phone has activated a call, the
CK21 will disconnect to the other phone temporally, when you end the call the
Ck21 will re-connect it automatically, please make sure your phone's Bluetooth
function would not be inactive during the calling.
(f)Adjusting the Volume:
During the call is in progress, press the volume up or volume down buttons to increase
or decrease volume. You can also adjust the volume on you mobile phone.
(g)Mute:
During the call is in progress, shortly press the "MODE" button to mute the MIC of
CK21, you will heart a tone from low to high, and the remindful tone will sound
every 10s. Repeat the operation to cancel mute function.
(h)Transfer a call:
During the call is in progress, shortly press the"V+"& "V-"bttons, then the call will be
transferred to mobile phone.
Repeat the operation can transfer the call between the mobile phone and CK21.