File:NTT日本電信電話株式会社・ネットメイトD64 仕20078号2版 1990年8月製造.png

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Description
日本語: NTT 日本電信電話株式会社 ネットメイトD64 仕20078号2版 ISDN電話機・ターミナルアダプター 、1990年8月製造。NTTのIインターフェース(2B+D)のISDN、INSネットが一般に登場した当時に初めて登場した、ISDN回線専用電話機 兼 ターミナルアダプター。この電話機のRS-232Cポートにコンピュータをつなぐことによりデータ通信も可能で、同時に電話機としても利用でき通話も可能です。ISDN回線にはDSUのS/Tポートにより接続します。通話終了後、交換機から送られてくる信号によりディスプレーに実際に請求される通話料金が表示されます。この写真の電話機は、中山卓也がコレクションとして保有し、撮影しました。
Date
Source Takuya Nakayama 中山 卓也 Takuya~commonswiki
Author Takuya Nakayama 中山 卓也 Takuya~commonswiki

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ISDN Telephone

inception

16 January 2021

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current23:13, 16 January 2021Thumbnail for version as of 23:13, 16 January 20216,250 × 5,000 (22.62 MB)Takuya~commonswikiUploaded own work with UploadWizard
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