デジタル加入者線（ツイストペアケーブル通信線路で高速デジタルデータ通信を行う技術）
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©2018 European Sign Language Center
Web: www.signlanguage.eu
E-mail: info@signlanguage.eu
Postal address:
European Sign Language Centre
Ormesta 505
705 95 ÖREBRO, Sweden
Thomas Lydell - Founder
thomas.lydell@signlanguage.eu
Phone: +46721765145
