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TNSDL
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<p>TNSDL stands for TeleNokia <a href="/facts/Specification_and_Description_Language/dW7Q5zIe">Specification and Description Language</a>. TNSDL is based on the <a href="/facts/ITU-T/9nJwkPYx">ITU-T</a> <a href="/facts/Specification_and_Description_Language/dW7Q5zIe">SDL</a>-88 language. It is used exclusively at <a href="/facts/Nokia_Networks/RrxJV25b">Nokia Networks</a>, primarily for developing applications for <a href="/facts/Telephone_exchange/PaRpGm8I">telephone exchanges</a>. </p>