China National Standards

China Visual voicemail Industry Standards English PDF List

  •  China " Visual voicemail" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    YD/T 2748-2014 (Visual voicemail (VVM) business technology requirements)
    可视化语音信箱(vvm)业务技术要求    		 China Telecommunication Standards
    Visual voicemail
    English PDF

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