3 - 4 TC70x/TC75x User Guide for Android Version 6.0.1
Figure 3-3 Call in Progress
• - touch to send audio to the speakerphone.
• - touch to mute the call.
• - touch to display the dial pad.
• - touch to place the call on hold.
• - touch to create a conference call.
5. Touch to end the call.
If using a Bluetooth headset, additional audio options are available. Touch the audio icon to open the audio menu.