QUESTION: 1

The MTU board can support 4 E1/T1 interfaces. How to switch between E1 and T1 interfaces. Which statement is correct? (single choice)

You only need to select E1 or T1 in the "Parameter Configuration> Transmission Mode" in the "Quick Configuration> Configure Board" page on the U1900 Web management page, and the switch can be completed
The default is the E1 interface. To switch to T1, you need to remove the jumper cap inside the MTU board. Need to enter the Web management page to modify the configuration
The default is T1 interface, switch to E1, you need to remove the jumper cap inside the MTU board, and you need to enter the Web management page to modify the configuration
None of the above

Answer(s): B

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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. Which of the the following statements is wrong?

The registration status of phone A in the U1900 system may change immediately
The registration status of phone A in the U1900 system may remain unchanged
The registration status of phone A in the U1900 system may change after a period of time
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(s): D

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QUESTION: 3

In the VoIP system, what are the factors that affect the quality of voice calls? (Multiple choice)

Jitter
delay
Packet loss
bandwidth

Answer(s): A,B,C,D

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QUESTION: 4

In the U1900 unified gateway, outgoing calls need to be configured in a certain order. The following configuration process is correct? (Multiple choice)

Office route selection code -> office route -> trunk -> prefix
Office route selection code -> Trunk -> Office route -> Prefix
Office route selection code -> prefix -> office route -> trunk
Office route selection code -> Trunk -> Prefix -> Office route

Answer(s): A,C

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