
【国外标准】 IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for Speech Telephony
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2025-04-28
- IEEE 823-1989 [ Withdrawn ]
- 定价: 109元 / 折扣价: 93 元
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标准号:
IEEE 823-1989 [ Withdrawn ]
标准名称:
IEEE Standard Methodologies for Specifying Voicegrade Channel Transmission Parameters and Evaluating Connection Transmission Performance for Speech Telephony
英文名称:
标准状态:
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