Which board below the U19 gateway provides venue resources for voice conferencing? [Single Selection].

The RP multi-function zhizhen can be connected to the power supply and network cable through the outlet hole under the device. [Single Selection].

TE40 and Polycom's same grade benchmark product is Group 550, in terms of business guidance strategy, what points need to be guided to force Polycom to use a higher-level end product Group700 to deal with? [Multiple Choice Question].

SC can configure SIP Trunk to interface with UC and other systems. [Single Selection].

What are the huawei TP series three-screen zhizhen models that can be sold at present? [Multiple Choice].