A postal, telegraph, and telephone service (or PTT) is a government agency responsible for postal mail, telegraph, and telephone services. Such monopolies existed in many countries, though not in North America, post-war Japan or Spain. Many PTTs have been partially or completely privatised in recent years, though a few, such as Posta ve Telgraf Teşkilatı of Turkey, Myanma Posts and Telecommunications of Myanmar and Tusass of Greenland, continue to remain wholly government-owned. In many of said privatisations, the privatised corporation was completely renamed, such as KPN in the Netherlands, Orange S.A. in France (+ Orange Polska in Poland), BT Group in the United Kingdom, Eir in the Republic of Ireland, Swisscom in Switzerland, Telstra in Australia, Spark in New Zealand, Proximus Group in Belgium, A1 Telekom Austria Group in Austria, TDC Group in Denmark, Telia Company in Sweden and Finland, Telenor in Norway, Chunghwa Telecom in Taiwan and Singtel in Singapore; whereas in others, the name of the privatised corporation has been only slightly modified, such as Telkom Indonesia in Indonesia, Telekom Malaysia in Malaysia, Deutsche Telekom in Germany (+ Hrvatski Telekom in Croatia and Telekom Romania Mobile in Romania), Kosovo Telecom in Kosovo, KT in South Korea, Post Luxembourg in Luxembourg and Síminn in Iceland.
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Postal Telegraph and Telephone in the context of Mail
The mail or post is a system for physically transporting postcards, letters, and parcels. A postal service can be private or public, though many governments place restrictions on private systems. Since the mid-19th century, national postal systems have generally been established as a government monopoly, with a fee on the article prepaid. Proof of payment is usually in the form of an adhesive postage stamp, but a postage meter is also used for bulk mailing.
Postal authorities often have functions aside from transporting letters. In some countries, a postal, telegraph and telephone (PTT) service oversees the postal system, in addition to telephone and telegraph systems. Some countries' postal systems allow for savings accounts and handle applications for passports.