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	1837~1926 (From the Edo to the Taisho era)		1945~1985 (Showa )
	1926~1945 (Showa )		1985~ (After NTT privatization)

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	Telephone service		Additional telephone servicesSpecial number service		Telegraph
	Public telephones		Wireless communications		Data communications
	Telephone directories		Telephone exchanges		Facsimile
	Business Phones		Home Telephones		Contributions To Society
	Other

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Return to the Entrance Lobby

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Any comments or suggestions

museum@mod.hqs.ntt.jp