If a public network terminal fails to call a private network terminal in videoconferencing service, what technologies can be used to make the private network terminal call the public network terminal back to address this issue.( ) (Select 2 answers)
The core of NAT mapping is the changing of the data packet header (sink IP address). ( )
Audio Signal Processing from audio input to audio playing, mainly including: Inputting analog audio signals, Sampling/Quantizing/Encoding audio signals, Playing audio signals, Decoding audio signals. Transmitting/Storing audio signals. ( )
H.460.18 specifies the public-private network traversal process of the media stream of H.323-()
Private and public network terminals are registered with a GK. A private network terminal has NAT disabled. If a public network terminal fails to call this private network terminal, what is the root cause?( )
