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Setting Hearing Aid Compatibility 
Enabling hearing aid compatibility to use a hearing aid with a 
telecoil to answer the phone, helps you hear more clearly 
during the phone call. To do so: 
1.  Touch the Home key >    >    in the top search field > 
Settings > Call settings. 
2.  Check Hearing aids to enable hearing aid compatibility. 
  CAUTION: Do NOT enable the Hearing aids option 
unless you use a hearing aid with a telecoil. Using 
this setting without a hearing aid or with a hearing 
aid without a telecoil may be damage hearing. 
Setting Speed Dials 
Touch and hold the 1 ~ 9 keys from the dialer to call the 
corresponding speed dial number. 
The number key 1 is reserved to speed dial your voicemail. 
To assign a speed dial key: 
1.  Touch the Home key >    >    in the top search field > 
Settings > Call settings > Speed dial. 
2.  Touch a speed dial key. 
3.  Type a phone number or select one from the contact list. 
4.  Touch OK. 
Setting DTMF Tones 
To set the length of Dual-tone multi-frequency (DTMF) signal