语音质量的好坏直接影响用户对运营商的选择，因此对NGN网络语音服务质量进行有效的分析和测量是十分重要的。
The quality of the speech will directly affect the choice of the user to the operator. Therefore, how to analysis and evaluate speech service quality of NGN is extremely important.
语音质量的好坏直接影响用户对运营商的选择，因此对NGN网络语音服务质量进行有效的分析和测量是十分重要的。
The quality of the speech will directly affect the choice of the user to the operator. Therefore, how to analysis and evaluate speech service quality of NGN is extremely important.
应用推荐