1.7. Call waiting/Toggle calls
1. If you are already have an active call, one of the function keys lights up green.
2. The call waiting tone indicates a second call is coming in. At the same time, another function key rapidly flashes green. Press the function key (next to the rapidly flashing LED) to accept the call.
3. You can now toggle between the two calls by directly pressing the two function keys. The active call is indicated with a consistent green LED and the waiting call with a flashing green LED.
4. To end a call, simply hang up the receiver during the active call.