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Controlling What is Heard
Updating the incoming call ringtone.
Updating a contact’s ringtone.
Changing the speaker volume.
Changing the ringer volume.
Muting the microphone.
Changing where you hear sound eects.
You can change what you hear by doing the following :
Updating the Incoming Call Ringtone
A simple way to personalize your phone is to change your phone’s ringtone. You can even 
pick unique ringtones for the dierent lines on your phone.
Select Settings from Home view, and select Basic > Ring Type.
If multiple lines are configured on your phone, select the line you want to apply a new 
ringtone to.
From the Ring Type screen, use the up and down arrow keys to select the ringtone you want. 
To hear the ringtone before you change it, press Play. The default ringtone is Low Trill.
To select an incoming call ringtone for your phone or a line :
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Updating a Contact’s Ringtone
You might find it helpful to select unique ring tones for the various contacts in your Contact
Directory. In this way, you can quickly identify callers as your phone rings.