VVX D230 Wireless Handset User Guide  Using Your VVX D230 DECT IP Phone
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Redial a Number
You can redial the last dialed number on your phone.
To redial a number:
» Press Redial.
Audio Adjustments
You can control many audio functions on the handset, including using the speakerphone or earpiece, 
controlling the volume, or muting the microphone. 
Switch Between the Earpiece and the Speakerphone
You can switch between listening to audio on the speakerphone and the earpiece.
To switch between the earpiece and speakerphone:
» During a call, press the Speakerphone button .
Adjust the Volume 
You can increase or decrease the volume of the ring tone or call audio on your wireless handset.
To adjust the volume:
» Press the Upward Arrow Key  or the Downward Arrow Key  to adjust the listening volume. 
Mute or Unmute the Microphone
During a call, you can mute the microphone to stop sending audio to the far end, and you can unmute the 
microphone when you’re ready to resume sending audio.
To mute or unmute your audio:
» During a call, press the Mute button  to mute or unmute the microphone.
Access Voicemail Messages
You can access and listen to new voicemail messages from the wireless handset. 
To access and listen to voicemail messages:
1 Press Menu, then select Messages.
2 Select the Message Center.