By modifying tone resource in media gateway, I advanced that under H. 248protocol the signal tone customer heard can be changed.
并提出了在H . 248协议下，通过修改媒体网关音资源数据，从而改变用户信号音的新思路。
By modifying tone resource in media gateway, I advanced that under H. 248protocol the signal tone customer heard can be changed.
并提出了在H . 248协议下，通过修改媒体网关音资源数据，从而改变用户信号音的新思路。
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