FDN : Fixed Dialing Numbers
A feature that allows the phone to be "locked" so that it can only dial certain numbers, or
numbers with certain prefixes.
A PIN code (numeric password) protects the allowed list of numbers from being changed by any person who does not know the PIN code.
Fixed Dialing Number (FDN) is a service mode of a GSM phone's Subscriber Identity Module (SIM) card. Numbers are added to the FDN list, and when activated, FDN restricts outgoing
calls to only those numbers listed, or to numbers with certain prefixes. A notable exception is that emergency calls to 000, 112, 911, 999 and the like are exempt (and typically require no SIM or even an active service contract). Incoming calls are not affected by FDN mode.
Not all SIM cards have this feature. PIN2 must be entered beforehand or when applying such settings, which is unique to each card and initially provided by the network operator. Doing so prevents unauthorized users disabling the FDN list. This code is separate from the main PIN1 number which can lock and unlock the SIM card for both inbound and outbound calling.
One practical application of FDN is for parents to restrict the phone numbers to which their children can dial. For example, the list may give the child permission to call only their relatives or friends. Companies also use this to restrict employees from using company phones for personal use.
User guides 17:59, 30 Aug 2012
We explain how to set up and use Fixed Dialing Numbers on your
Samsung Galaxy Note 10.1
The Samsung Galaxy Note 10.1 is a fantastic device which can be enjoyed by young and old alike, and it's one of the few tablets on the market with GSM capability, which gives the device the ability to make and receive calls.
With this in mind, if you have a Galaxy Note 10.1 which is used by the whole family, you may want to set up certain restrictions so that you don't end up with astronomical bills every month.
One such restriction is Fixed Dialling Number, or FDN mode, which allows you to set up a list of phone numbers to which calls cannot be made, and the function even allows you to bar certain dialling code prefixes, such as premium rate numbers.
We've put together a quick and easy guide designed to keep your younglings safe and ensure you aren't bankrupted by your phone bill.
Go to your Apps on your Samsung Galaxy Note 10.1
Select ‘Phone'
Tap ‘Keypad'
Tap on the menu icon with the keypad
Choose ‘Call Settings'
Tap ‘Additional Settings'
Tap ‘Fixed Dialling Numbers'
Choose ‘Enable FDN'
Enter the PIN2 code that came with your SIM card
Select ‘FDN List'
Enter the numbers that you want to allow calls to be made to
Tap ‘Save'
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