FluentCloud WebPhone can support 3 simultaneous calls. The color indicates the status of the call:
Green - Call is active
Red - Call is on Hold
Yellow - Call is connecting
Placing a Call on Hold:
When on a call, press the Hold button:
The Hold button will turn red indicating that the call is on hold, and the line will turn from green to red. Press the Hold button again to pick-up the call on hold.