How do I switch between the Speakerphone mode and the RJ11 Phone during an active call?

             Speakerphone mode                                         RJ11 POTS mode

1. Switching from the Speakerphone mode to the RJ11 Phone: If the user is using the speakerphone during an active call, simply picking up the RJ11 phone, and the call automatically switches from the speakerphone to the RJ11 phone. 
2. Switching from RJ11 Phone back to the Speakerphone mode: The user can switch back to the Speakerphone mode by tapping the green Phone button on the BuddyTalk device top touch panel and then hang up the RJ11 phone.