Question 1

In the U1900 series unified gateways, regarding the relationship between prefix, office direction, office direction selection code and trunk, the correct statement is () multiple selection

AOne prefix can only correspond to one office direction selection code

BOne office route selection code can only correspond to one prefix

CThe correspondence between office direction selection code and office direction is one-to-many

DOne office route can correspond to multiple different types of relays

Answer : A, C

Question 2

Regarding the advantages of MCU cascading networking, the following statement is wrong ()

AInsufficient port capacity of a single MCU, cascade to increase capacity

BThe center MCU line bandwidth is insufficient, cascading reduces bandwidth requirements

CRealize device partition management

DStrengthen meeting security

Answer : D

Question 3

Which of the following methods can reset the web login password of the TE terminal? () Multiple choice

AWhen the system is just started, long press the mode button of the TE30 terminal

BWhen the system is running normally, long press the Reset button on the TE60 terminal

CLog in to the TE40 terminal via SSH and enter web password 0

DRestore factory settings via remote control

Answer : A, B, C, D

Question 4

Which of the following SIP message header field parameter combinations can identify the uniqueness of the call? () Multiple choice

AFrom

BTo

CCSeq

DCall-ID

Answer : A, B, D

Question 5

If IP phone A fails to register with U1900, which of the following situations will not be the cause of the registration failure? ()

AIP phone A has a network failure

BThe SIP server information in the configuration of IP phone A is incorrectly configured.

CSIP account and password in IP phone A configuration are wrong

DThe user ID and phone number of IP phone A configured in the U1900 system are inconsistent