t7345s 发表于 2014-12-25 21:58:43

ETSI EG 201 050 V1.1.1 (1998-05)

EG 201 050 V1.1.1 (1998-05)
ETSI Guide
Corporate telecommunication Network (CN);
Overall transmission planning for telephony
on a Corporate Network

admin 发表于 2014-12-26 12:44:21

谢谢您的分享，金币已奖励
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