负责R&S音视频测试仪器、汽车 电子测试仪器和系统的售前和售后 技术支持；
Pre- and Post-sales technical support on R&S audio & video test instruments, automotive electronics test instruments and systems;
第二类是广播电视，广泛应用于音视频设备的测试。
通过对系统的整体测试，视频电话的效果良好，网络传输延时低、无明显抖动，实现了利用IP视频电话进行语音视频通话的功能。
The result of the test shows that the whole system works well; the transmission is low delay and no significant jitter and achieves the function that IP video Phone is used for voice and video calls.
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