Regarding call bills and billing scenarios, which of the following statements is correct () (multiple choice)
A . The CDR data will eventually need to be imported into the CDR database
B . Users can query the bill data through the web page of the U1900 unified gateway
C . In the CDR integrated network, the third-party billing system is used as FTP Client
D . A single bill server can store and process bill data from multiple IP PBX hosts at the same time
Answer: C,D
Regarding MCU cascading, what is wrong in the following description ()
A . MCU cascade is divided into manual cascade and automatic cascade
B . Manual cascading requires scheduling of two conference templates
C . Automatic cascading does not require configuration of cascading sites
D . Manual cascading must configure GK routing
Answer: D
In the central networking mode of the converged conference MCU, what is correct about the traversal of public and private networks? () (Multiple selected)
A . TE/RP/TP access MCU through SC proxy signaling and media stream
B . eSpace Mobile accesses MCU C through SBC proxy audio and video media.
C . External web client access MCU through MS proxy audio and video
D . eSpace PC connects to MCU through SC proxy signaling and media stream
Answer: A,B,C
In the SIP response message, which of the following messages are numbered 300-399? ()
A . success
B . Redirect
C . Client error
D . Server error
Answer: B
Which of the following methods can reset the web login password of the TE terminal? () Multiple choice
A . When the system is just started, long press the mode button of the TE30 terminal
B . When the system is running normally, long press the Reset button on the TE60 terminal
C . Log in to the TE40 terminal via SSH and enter web password 0
D . Restore factory settings via remote control
Answer: A,B,C,D
Phone A has been successfully registered to the U1900 system. At some point, unplug the network cable. At this time, log in to the U1900 system to check the registration status of phone A. The following statement is wrong ()
A. The registration status of phone A in the U1900 system may change immediately
B. The registration status of phone A in the U1900 system may remain unchanged
C. The registration status of phone A in the U1900 system may change after a period of time
D. The registration status of phone A in the U1900 system is updated, only after the network cable of phone A is unplugged, the change occurs after half of the registration period of phone A has passed
Answer: D
There are two terminals, T1 and T2, both registered to the same GK.
When T1 calls T2 by number, what is wrong with the following statement? () Multiple choice
A . The ACF message received by T1 contains the GK call signaling channel transmission address
B . The ACF message received by T1 contains the call signaling channel transmission address of T2
C . After T2 receives the Setup message, it sends an ARQ message to GK
D . After T2 receives the Setup message, it sends an ARQ message to T1
Answer: A,D
When other conditions are the same, the longer the reverberation time of the room, the clearer the sound heard Clarity. () Right or Wrong
A . Right
B . Wrong
Answer: B
Which of the following backup methods is not supported by VP9660 MCU? ()
A . Main control board backup
B . Power backup
C . IP/E1 line backup
D . Media/signaling board backup
Answer: C
How many pixels of a camera with 1080P image resolution equivalent ()
A . 2 million
B . 800w
C . 2.3 million
D . 5000000
Answer: A