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ETSI EN 301 131

ETSI EN 301 131
ETSI EN 301 131 English PDF Integrated Services Digital Network (ISDN); Teleaction teleservice; Service description

standard published 01/01/1999 by European Telecommunications Standards Institute

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Definition of the teleaction service in ISDN

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Edition: 1.1.1 Published: 01/01/1999 Number of Pages: 21

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