See also:

Three-Way Calling
To initiate three-way calling, press the button while a call is in progress, and make a second phone call, as described under “Making a Second Call While Current Call is in Progress”. After ...

Conference Call
When two calls are in progress (one active and one on hold), press and hold the button until you hear a double beep indicating that the two calls have been joined into one conference call. ...

Carbon Monoxide Warnings
WARNING! Carbon monoxide (CO) in exhaust gases is deadly. Follow the precautions below to prevent carbon monoxide poisoning: • Do not inhale exhaust gases. They contain carbon monoxide, a colorle ...