642-427 - Troubleshooting Cisco Unified Communications v8.0 (TVOICE v8.0)
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Cisco Unified Communications Manager is configured with CAC for a maximum of 10 voice calls. Which action routes the 11th call through the PSTN?
Configure Cisco Unified Communications Manager AAR.
Which statement about the function of a gatekeeper is true?
A gatekeeper can simplify the dial plan between many different Cisco Unified Communications Manager clusters.
Which two troubleshooting tools would initially be the best to use when troubleshooting the PSTN gateway side of a call routing issue while using Cisco Unified Communications Manager? (Choose two)
RTMT trace output
Dialed Number Analyzer output
Which issue would cause an MGCP gateway to fail to register with Cisco Unified Communications Manager?
mismatched domain name on the MGCP gateway and Cisco Unified Communications Manager gateway configuration
The knowledge about RAS message is very important. Which of the following RAS messages can be sent by using either unicast or multicast?
Where does an IP phone obtain the extension number and speed-dial settings from?
the device and line configuration in Cisco Unified Communications Manager, during the registration process
Which two are gatekeeper-controlled trunk options that support gatekeeper call administration control? (Choose two.)
Which option configures the secondary dial tone option for SRST mode to let the users hear the dial tone for PSTN calls?
call-manager-fallback secondary dialtone 0
You have configured an ISR at a branch office to register as an Enhanced IOS media resource providing transcoding services. The transcoder has not been placed into a media resource group. Which statement best describes which devices will be able to utilize this transcoder?
All devices will be able to utilize the transcoder.
The CLI utils dbreplication reset all was run on a Cisco Unified Communications Manager. However, replication failed to restart. Which course of action should be taken to resolve this issue?
Issue the CLI command utils dbreplication clusterreset
If you are required to configure a router to use MGCP on a digital port, which measure will you take?
Add the service mgcp parameter to the ds0-group controller subcommand
Which two statements about remote survivability are true? (Choose two.)
SRST supports more Cisco IP Phones than Cisco Unified Communications Manager Express in SRST mode.
MGCP fallback functions with SRST.
Cisco CallManager has just been deployed in two locations across a wide-area link. A distributed model with an intercluster trunk has been used. When you call an IP phone at the remote site the phone rings, but as soon as the other person picks up the phone, the call is dropped. Where should you look to diagnose the problem?
media resource group
Which statement about device mobility is true?
When local route groups are used, there is no need to conjure device mobility groups or phone device CSSs as long as phone line CSSs are used.
If the device pool in the phone record does not match the device pools in the matching subnet, what will the system consider the phone to be?
All directory number extensions are assigned to the Internal_LP partition. All phones are configured with only a line CSS, BR1 Jntl.CSS. Assuming the gateway has been configured correctly. When the two PSTN callers place a call to 02288223002, which of the following statements is true?
Both calls will succeed.
When the command utils dbreplication status is executed on the Cisco Unified Communications Manager CU, which step should be taken next to check the database replication status?
Restart the Cisco CallManager service.
What happens if CDP is not enabled on a switch port to which an IP phone is connected?
The phone cannot get its VLAN ID assignments.
Your company has a centralized IP Telephony system and branch offices in eight major cities. The manager of your company help desk recently published local access numbers for external customers to reduce the costs associated with your company's toll-free 800 service. However, when customers call the new local numbers they hear a reorder tone instead of your centralized IVR. What is the best solution to this issue?
Deploy transcoders at the central location.
Which two statements indicate something that can cause an IP phone to fail roaming when device mobility has been configured? (Choose two)
Device Mobility Mode is set toOff in the Cisco Unified Communications Manager service parameters while the device mobility configuration on the phone is set to default.
Which statement indicates something that can cause an inbound PSTN call to an H.323 gateway that is configured in Cisco Unified Communications Manager to fail to ring an IP Phone?
The gateway IP address that is configured in Cisco Unified Communications Manager does not match the IP address that is configured at the gateway in the h323-gataway voip bind srcaddr command.
Which of these reasons can cause intrasite calls within a Cisco Unified Communications Manager cluster to fail?
The calling phone does not have the correct CSS configured
Which of these is used by the Cisco IP phone to relay to the switch the information regarding how much power is needed?
the Cisco Discovery Protocol
An IP phone that is connected through a Cisco Catalyst 3750 Series Switch is failing to register with the subscriber as a backup server. When the user presses the settings button in the phone, only the Cisco Unified Communications Manager publisher shows as registered. What is the most likely cause for this issue?
The Cisco Unified Communications Manager group that is applied through the device pool is misconfigured.
In a Cisco UCM single-site deployment, please choose the maximum number of IP phones that can register with a UCM cluster.
A junior engineer has attempted to configure an MGCP gateway to register with a Cisco Unified Communications Manager cluster. Which troubleshooting approach is most relevant to achieving MGCP gateway registration with the Cisco Unified CM cluster?
Make the gateway hostname match the MGCP gateway name in Cisco Unified CM.
Which device is used to connect to the H.323 gatekeeper?
Which method can be used to correct database replication issues in a cluster running Cisco Unified CallManager 5.0?
Enter the utils dbreplication repair command at the command-line prompt.
You have placed all DNs in the Phones partition. During testing you discover that you cannot place calls between IP phones, but you can place calls to the PSTN and voice mail. What is one possible cause of this issue?
The IP phones have not been assigned a CSS.
As a network technician, you should be familiar with various commands. Which command displays a count of successful and unsuccessful control commands?
show mgcp statistics
Please choose four mandatory features of an H.323 gatekeeper from the following items.
A Cisco Unified Communications Manager cluster is installed in headquarters only. Real 102 How can international calls be blocked while national calls are allowed for branch office Cisco IP Phones during a WAN failure?
Configure COR in the SRST ISR.
MGCP use which call control model?
After a successful login using Cisco Extension Mobility, an IP phone performs a restart followed by a reset. What can cause this issue?
The locale that is configured on the phone is different than the locale that is configured in the user device profile.
If you want smooth voice, what is the highest acceptable round trip delay?
Which two entities could be represented by device mobility groups? (Choose two.)
Which statement about the function of the "+" symbol in the E.164 format is true?
The "+" symbol represents the international call prefix.
As a network technician, you should be familiar with RTCP. Which of the following statements best describes a function of RTCP?
RTCP provides out-of-band control information for an RTP flow
You have been employed as a network technician in a middle-sized company. Suppose that the default dial peer is matched. Please choose a capability that you must configure.
Caller at site using CUCME can't call international but everyone else can. What troubleshooting methods do you use? (Choose two)
Show ephone and ephone dns
Which web-based application that is accessed via the Cisco Unified Communications Manager Administration GUI generates reports for troubleshooting or inspecting cluster data?
Cisco Unified Reporting tool
What is an advantage of TEHO?
TEHO implemented with ISRs can reduce PSTN toll charges.
Which four of the following options are Cisco-supported IP telephony deployment models?
Multisite with distributed call processing
Multisite with centralized call processing
Clustering over the IP WAN
When a SIP trunk is added for Call Control Discovery, which statement is true?
The SIP trunk is added by selecting SIP Trunk and SIP Protocol. The Trunk Service Type should be Call Control Discovery.
When a user attempts to log out from Cisco Extension Mobility service by pressing the services button and selecting the Cisco Extension Mobility service, the user is not able to log out. What is causing this issue?
The user device profile is not subscribed to the Cisco Extension Mobility service
Which tool or approach is the most effective to display detailed real-time output of CPU utilization of Cisco Unified Communications Manager servers for troubleshooting purposes?
Which two troubleshooting tools would initially be the best to use when troubleshooting the PSTN gateway side of a call routing issue while using Cisco Unified Communications Manager Express? (Choose two)
Cisco IOS debug commands
Cisco IOS show commands
When a Cisco Unified Border Element is deployed to support RSVP-based CAC, which method is required?
RSVP-based CAC can be supported with either media flow-through or media flow-around if the Cisco Unified Communication manager is configured as an RSVP agent B. RSVP-based CAC only supports media flow-around
Which web-based application that is accessed via the Cisco Unified Communication Manager Administrator GUI generator reports for troubleshooting or increasing cluster data?
Cisco Unified Reporting tool
Which codec complexity type will offer the greatest number of voice channels, provided that the complexity type is compatible with the particular codecs that are in use?