The Call-ID header field serves as a unique identifier for a collection of messages, and in a conversation, the Call-id must be the same in all the last requests sent by each UA. ( )

The Clear Fluency Strategy works with the H.264H.265 protocol, and if there is no ability in the public capability, the Clear Fluency Strategy will not work. ()

The following description of the auxiliary IP of hd terminals, which one is wrong?

Huawei NLOG software is part of the conference scheduling and management software, and is installed and used together with the SMC conference management software. ( )

At DVI output, the 9039S and 9039A can support a primary and secondary input resolution of 1080P
60fps, in which case the secondary can reach ( ). The resolution of .