fdn contacts?

What is FDN Contact in Samsung Keypad Phone b110e, e1200, b310e, b313e, e1200y

FDN (Fixed Dialling Number) or FDM (Fixed Dialling Mode) is a service mode of GSM phone’s Subscriber Identity Module (SIM) card feature that allows the phone to be “locked” so that it can only dial certain numbers, or numbers with certain prefixes. Incoming calls are not affected by FDN service.

FDN Restricted By Samsung All Mobile || How To Disable FDN Restricted || How To Setting Fixed Dial

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