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Fixed Dialing Number (FDN) is a service mode of a GSM mobile phone's SIM card. [1] 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. [1] A notable exception is that emergency calls to 000, 112, 911, 999 and the like are exempt. [2]
This means that a traveller visiting a foreign country does not have to know the local emergency numbers. The mobile phone and the SIM card have a preprogrammed list of emergency numbers. When the user tries to set up a call using an emergency number known by a GSM or 3G phone, the special emergency call setup takes place. The actual number is ...
111 – emergency number in New Zealand; 112 – emergency number across the European Union and on GSM mobile networks across the world; 119 – emergency number in Jamaica and parts of Asia; 122 – emergency number for specific services in several countries; 911 – emergency number in North America and parts of the Pacific; 999 – emergency ...
Reliable access to the mobile networks, even during times when an exceptionally large number of calls are being made, is achieved by installing a special SIM (subscriber identity module) card in the telephone handset. Special SIMs are only available to entitled users within the emergency services community, and not to members of the public.
In reality, the rechargeable calling card is a specialised form of a prepaid or debit account. To use the phone card, the user would call an access number (which is usually a toll-free telephone number), enter the "card number" (also called the PIN) and then dial the desired telephone number. The user could add value to the card at the same ...
The MTPAS access class may be indicated on the SIM card, or in protected storage on the handset itself, by a set of numbers in the range 0 - 15, giving a total of 16 flag bits in the Access Control Class Elementary File (EFACC) in a USIM. For instance, if the 16-bit control word is 1010-0000-0011-1111, only phones with the MTPAS access levels ...
112 (emergency telephone number) Operator in Kraków responding to a 112 phone call. 112 is a common emergency telephone number that can be dialed free of charge from most mobile telephones and, in some countries, fixed telephones in order to reach emergency services (ambulance, fire and rescue, police).
[7] 000 is the only emergency number that can be dialled from fixed lines including public payphones. No SIM card is required to call to 000. For non-life-threatening situations and natural disasters, the State Emergency Service (SES) number 132 500 should be called instead. [1] For non-emergency calls to the police in Australia, 131 444 should ...