The advantages of static NAT include. ( )

The HD terminal provides remote control interface, web management, remote SSH function, and assigns a user name and password to each service.

Test whether the terminal color output is realistic during the color bar test.

The role of RTP in VoIP mainly includes: real-time transmission of media information, elimination of jitter, card performance, prevention of packet loss, in a certain situation can be transmitted DTMF signals,

tones and signaling.

MSDR is the master-slave decision to reject the message, the ability to exchange results that are inconsistent with the settings of this end, then reply to MSDR. ( )

In video conferencing, the empty field noise is required not to be greater than ( ).

There are three types of 260.H.264 encoded video frames : ( ).

RAS performs administrative functions, the main content of which includes ( ).

The following six main request messages are not part of the SIP protocol. ()

H.245 The main signaling consists of ( ).

The gatekeeper rejects the access authentication, address resolution request, and gives the resolution result, which of the following signaling can achieve this function

The MCU supports () web users to log in at the same time.

The MCU is in wall riding mode, ( ) needs to be registered with the GK.

Under static NAT networking, the SRC address of the terminal under the private network changes to ( ).

Which of the following protocols belongs to the encapsulated transport protocol ( ).