Samsung SM-S975LZKATFN - Manual (Page 352)

Call Waiting
1. From the main Call settings page, tap Additional settings.
2. Tap Call waiting to enable/disable the on-screen notification of
new incoming call during an active call.
Auto Redial
1. From the main Call settings page, tap Additional settings.
2. Tap Auto redial to automatically enable/disable the feature
whereby the device redials the dialed number if it is unable to
connect or the call is cut off.
Fixed Dialing Numbers
Fixed Dial Number (FDN), allows you to restrict outgoing calls to a
limited set of phone numbers.
Enabling FDN
1. From the main Call settings page, tap Additional
settings ➔ Fixed dialing numbers.
2. Tap Turn on FDN.
3. At the prompt, enter your PIN2 code and tap OK.
Important! Not all SIM cards use a PIN2 code. If your SIM card does
not, this menu does not display.
The PIN2 code is provided by your provider. Entering an
incorrect PIN2 code could cause the phone to lock. Contact
customer service for assistance.
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