1. During the Call, press the MPK button as shown above.
2. The list of MPK configured for the active account will be displayed.
Figure 49: MPK list
3. User can choose an MPK from the list as they see convenient
Mute
During an active call, press “More” →”Mute” to mute the call. The mute icon will be displayed under
the Caller Name and ID. Press “More” →”Unmute” to unmute the call.
Figure 50: GXV3380 Call Mute