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Cisco Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0) Sample Questions:

1. Refer to the exhibit.

A second Cisco Unified Communications Manager server of 10.10.10.101 was added along with the existing Cisco Unified CM server of 10.10.10.100. When Cisco Unified CM 10.10.10.100 is unavailable, the branch gateway fails to register.
Which configuration change is needed to register the gateway to either Cisco Unified CM server?

A) Increase the amount of bandwidth allocated in the low latency queuing for MGCP signaling traffic.
B) Add a voice dial peer to 10.10.10.101.
C) Add the command ccm-manager redundant-host 10.10.10.101.
D) Add the command MGCP.
E) Remove the gatekeeper command because MGCP conflicts with H.323 on the voice gateway.

2. Two Cisco Unified Communications Manager clusters have recently been installed. One is in Tokyo and the other in Chicago connected by a WAN link. You have started the configuration of a SIP trunk and you are integrating the dial plans. All phones in Tokyo can call all phones in Chicago, but no phones in Chicago can call Tokyo phones.
Which two statements are possible causes? (Choose two.)

A) The Tokyo SIP trunk inbound CSS does not contain the partition of the Tokyo phones.
B) The CSS of the Chicago phones does not include the partition of the route pattern to point to Tokyo.
C) The SIP trunk is configured from Tokyo to Chicago, but not from Tokyo to Chicago.
D) The SIP trunk in Chicago is in a CSS that is not in the partition of the Chicago phones.
E) Tokyo phones are in a CSS that is not in the partition of the route pattern to call from Tokyo to Chicago.

3. Users are complaining that they hear echo when they place calls to the PSTN through the HQ_PSTN gateway. The voice port configuration for the gateway is as follows:
voice-port 1/0:23
input gain -1
output attenuation 1
echo-cancel erl worst-case 3
Why are users hearing echo?
Select the best response.

A) The echo canceller is functioning properly and some echo is to be expected on every call.
B) The actual ERL is 2dB; however, the echo canceller still does not acknowledge the input signal as echo because it is lower than the echo-cancel erl worst-case 3 command.
C) InSignalLevel needs to be adjusted so that it is within the range from -20 dB to -25 dB
D) The echo canceller should be configured so that SIN and SOUT have a 2 dB difference in order to function properly.

4. DRAG DROP

5. Echo is always present to some extent in all voice networks. For echo to be a problem, which three conditions must exist? (Choose three.)

A) sufficient echo amplitude to be perceived as annoying
B) sufficient power from the talker's side to cause listener echo
C) sufficient delay in echo return for echo to be perceived as annoying
D) analog leakage between analog Tx and Rx paths
E) an analog two-wire to four-wire hybrid operating below 600 ohm impedance

Solutions: