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

A. 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

B. 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

C. 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

D. None of the above

How to order the recorded video on RSE6500 on the terminal side? ()

A. When there is SC and routing has been configured, the terminal directly calls the IP address of RSE6500

B. When there is SC and routing is configured, the terminal directly calls the recording ID

C. When there is no SC or SC is not configured with routing, the terminal directly calls the recording ID

D. When there is no SC or SC is not configured with routing, the terminal calls RSE6500IP address##Recording ID

In the message classification of the RTCP protocol, which of the following messages describe the receiving statistics data of the receiving gateway? ()

A. SR

B. BYE

C. RR

D. SDES

Add active and standby SCs on SMC2.0, which of the following statements is correct () (multiple choice)

A. The license information of the active SC and the backup SC must be the same

B. In the process of SC active/standby configuration, the "Mode" parameter indicates the working status of the SC, the "Mode" value is 1 for standby, and the "Mode" value is 2 for active

C. The service IP is a virtual IP. The active SC and the standby SC share this virtual service IP to provide external registration and call services

D. The management IP address and service IP address of the active SC can be in two different network segments

When performing site backup on the SMC2.0, there is no need to do any configuration on the terminal side, just do the corresponding configuration on the SMC2.0. () Correct or Wrong

A. Correct

B. Wrong

In the U1900 series unified gateways, what is the correct statement about the prefix? ()

A. The prefix is divided into intra-office prefix and outgoing prefix

B. Intra-office prefix refers to the prefix used when dialing between different extensions of the same company

C. Since prefix 28 includes prefix 289, the system performs the called number according to the maximum matching principle Analysis, the call with the called number 28901111 should choose prefix 28

D. The prefix must correspond to the office route selection code

One MCU supports 24-port 1080P30. Which of the following conference scenarios can be supported through configuration? ()

A. 24 1080P30 venues

B. 12 1080P30 venues + 24 720P60 venues

C. 6 1080P30 venues + 24 720P30 venues

D. 12 1080P60 venues + 24 4CIF venues

Regarding the H.225 call signaling process, the following message sequence is wrong ()

A. setup/call proceeding/connect/alerting

B. setup/alerting/connect

C. setup/alerting/release complete

D. setup/call proceeding/alerting/connect

Regarding the IP phones and analog phones in the U1900 system, which of the following statements is correct ()

A. If you want to successfully register IP phones A and B to the U1900 system, the U1900 system must include the MTU board

B. When IP phones A and B have successfully registered to the same U1900 system, if IP phones A and B are able to dial each other, the U1900 system must include an MTU board

C. When IP phone A and B have successfully registered to the same U1900 system, if IP phone A calls When calling IP phone B, IP phone B is busy, then if you need IP phone A to hear busy Line tone, the U1900 must contain MTU board

D. If IP phone A and analog phone C (directly connected to the ASI board of U1900) are successfully registered to U1900, when A calls C, U1900 may not contain MTU board

IAD supports configuration methods including (). (Multiple choice)

A. Web

B. LMT

C. Command Line

D. eSight