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Audio Modes
The Dolphin 70e Black terminal is equipped with speakers on the front and bottom of the terminal and
dual microphones that you can use to send and receive audio signals over the GSM network, see
Features of the Dolphin 70e Black on page 3-4.
There are three audio modes:
• Handset Mode - The front speaker is used for receiving handset voice calls and the digital
microphones, located on the front and side panel of the terminal, provide noise cancellation for
clear audio input.
• Headset Mode - When a headset is plugged into the Audio Jack, the terminal defaults to the
headset for receiving calls and audio input.
• Hands-Free Mode - The bottom speakers are used as a speaker phone. To switch to speaker
phone during a call, touch on the phone icon in the tile bar at the bottom of the screen, then select
Speaker On.
Important - Do not cover the side microphone with your hand when using the terminal for phone calls.
Both the front and side microphones must be free from obstruction for the noise cancellation feature to
function properly during a handset mode call.
Volume Control
Press the up or down arrow on the Volume Control button on the left side of the device to adjust the
volume of the active speaker, see Volume Control Button on page 3-10.
Voice Communication
Accessing the Dialer Window
Note: The WWAN radio must be active for voice communication, see Enabling the WWAN Radio on page 8-3.
To open the Phone dialer do one of the following:
• From the Home screen, touch twice on “phone”.
• From the Home screen, touch > Phone .
• Press the Send button .
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