ICT Challenges - IT Part 4
[Multiple Choices]
On an enterprise VoIP network, only one U1981 is deployed. One day, the U1981 is faulty, causing all IP phones at the headquarters and branch offices failed to work. Which of the following can be done to prevent this from happening again?
A. Purchase another U1981. The two U1981s work in active/standby mode.
B. Purchase IADs for branches. If the U1981 at the headquarters is faulty, the power-off survival function of the IAD is used to provide basic call services for IP phones at the branch.
C. Purchase U1900 series gateways for branches. When the headquarters U1981 is faulty, the local regeneration function of the U1900 series gateways provides basic call services for branches.
D. Purchase another U1960 and configure the U1960 and U1981 to work in active/standby mode.
Answer:AC
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