What is IDD?

The abbreviation IDD has two meanings in the field of technology. On the one hand, it can refer to the immediate daily dialer ™, a software tool that helps in telephone contact with clients. Another meaning of IDD is international direct dialing. This concerns a direct international call method that is not facilitated by the operator that the International Telecommunications Union (ITU) declared in the standard E.164. The system uses a pre -recorded message when it reaches a voicemail, but gives the call to the operator when answering the call. Because it can handle voicemakers, it can therefore work without full attention to the operator. It also avoids the voltage of many repetitions and ensures that each message has the same tone and feeling. Calls can be adapted even when a recorded message is used.

is the UN Agency, which has the task of allocation and standardization of the radio spectrum and creates an organizational basis for international telephone calls. IdD prefix, sometimes called international call prefix , withthey induce from the ground and must be combined with the Earth codes; It was known that people focused them. While the general standard proposed ITU is 00 for the prefix, the country has made an alternative choice and the symbol + is used as a surrogate symbol.

Assigning zones for country codes has been determined as follows since 2005. Zone 1 includes Canada, the United States, the American Pacific territory and a number of nations in the Caribbean. Zone 2 is mainly African countries, zones 3 and 4 are Europe and Zone 5 includes Mexico, Central America, South America and West India. Zone 6 includes the South Pacific and Oceania, while the 7 Includes zone Russia and Kazakhstan. Zone 8 is for East Asia and special services such as mobile satellite system and maritime mobile service. Zone 9 covers Western Asia, South Asia and the Middle East, while zone 0 is not assigned.

In order to call an international call IDD, it begins with a prefix to induce your own country. You find thatin the phone book or on the Internet. For example, the United States ID is 011. Some phones allow dialing to simply save + along with the phone number, and then converts the phone to the right prefix when dialing. One follows the country code for the country that One calls, and for the United States it would be 1, the country code that he shares with many other countries, including Bermuda, Canada, Jamaica, Guam and Montserrat. One then continues with a city or area code if possible and by phone number. Some countries, especially small ones, do not use the codes of the city or areas, and these numbers are the most likely parts of the system that will change.