poc push to talk over cellular
对讲机推送通过蜂窝电话通话
以上为机器翻译结果，长、整句建议使用 人工翻译 。
With the approaching of 3g networking, a kind of business of broadband based on mobile communication network POC (Push to Talk over Cellular) has appeared.
POC业务是伴随着3 G网络建设的日益临近而随之产生的一种基于无线蜂窝移动通信网的宽带业务。
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