t7345s 发表于 2015-3-13 22:11:37

ETSI EG 202 534 V1.1.3 (2007-07)

ETSI EG 202 534 V1.1.3 (2007-07)
ETSI Guide
Human Factors (HF);
Guidelines for real-time person-to-person
communication services

admin 发表于 2015-3-16 10:00:23

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