2010 Buick LaCrosse Owner's Manual - Page 208

6-64 Infotainment System Ending a Call Conference Calling Conference and three way calling must be supported on the Bluetooth phone and enabled by the wireless service carrier to work. To start a conference while in a current call: 1. Press the 5 hard key on the faceplate until the Phone main screen is shown with the current active call. 3. Make another call. The first call will be placed on hold while the second call is dialing and connected. 4. To make a conference call, select the "Merge" option which will merge both calls into one conference call. 5. To add more callers to the conference call, repeat Steps 2 and 4. The amount of callers that can be added are limited by your wireless service carrier. There are a few ways that a call can be ended: 1. Press the 5 hard key. 2. Select Hang Up. 2. Select the "Enter Number" option.