此电路不但可产生模拟反极性信号，而且可抑制语音干扰和线路噪声，有效地解决了实时计费与管理问题。
This circuit can not only produce analogous polarity reversing signal, but also suppress disturbance and circuit noice, thus solving the problem of real time charging and administrating effectively.
该平台还可用于管理所有的移动数据连接，控制预算、计费和信号。
The platform will manage all mobile data connections, policy control, billing and signaling.
该平台还可用于管理所有的移动数据连接，控制预算、计费和信号。
The platform will manage all mobile data connections, policy control, billing and signaling.
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