BlueAnt S4 - Manual (Page 22)

22
Multiple Calls (Call Waiting)*
If you receive an incoming call while you are already on a call the S4 will play a tone to alert you.
> Press the + symbol on the S4 for about 1 second to put your current call on hold and answer the incoming call.
> Press the - symbol on the S4 for about 1 second to end the current call and answer the incoming call.
> Once you have a call on hold, you can switch between calls by pressing the + symbol for about 1 second.
Note: If one of the calls ends, some phones do not automatically resume the held call. If this happens, press the
+ symbol for about 1 second to release the hold and resume the other call.
Tip: If you are using multipoint, both phones remain connected during calls so you can also use these controls to
switch between calls on both phones.
* To use this feature, your phone and network must support call waiting.