t7345s 发表于 2015-2-15 22:41:14

ETSI EG 202 057-2 V1.2.1 (2005-10)

ETSI EG 202 057-2 V1.2.1 (2005-10)
ETSI Guide
Speech Processing, Transmission and Quality Aspects (STQ);
User related QoS parameter definitions and measurements;
Part 2: Voice telephony, Group 3 fax,
modem data services and SMS

admin 发表于 2015-2-16 15:49:14

谢谢您的分享，金币已奖励
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