Remote branch offices with Cisco IP Phones have just been implemented across a 2 Mb/s WAN
link from your existing Cisco Unified Communications Manager cluster in headquarters. The WAN
links are heavily utilized for data traffic. Users from the branch office report poor audio quality
when they call the headquarters.
Which approach can you implement to directly improve audio quality in this scenario?

Phone calls have been successful with acceptable audio quality over a WAN link. Recent
configuration changes in the WAN routers have resulted in the inability to hear any audio on new
calls across the WAN.
Which configuration changes directly cause a loss of audio?

Up to 10 phone calls over a 1 Mb/s WAN link have had consistently acceptable audio quality, even
with considerable data traffic. Recently, when over 10 calls are made, audio quality has declined.
Which solution would you implement to maintain acceptable audio quality for the first 10 calls only
while allowing for changes in WAN data utilization?

When users in headquarters call branch office users over the WAN link, branch users report poor
audio quality. Headquarters users consistently experience acceptable audio quality.
Which troubleshooting approach most directly improves the audio quality of the branch users?

Which step do you take after you gather all the facts to troubleshoot poor audio quality?

Which two issues cause a user to hear echoes when they talk on the phone? (Choose two.)