Implementing Cisco Collaboration Core Technologies (350-801 CLCOR)
Last Update Jan 14, 2026
Total Questions : 406
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Which DSCP PHB classification must be used to configure QoS for voice on a high-speed network?
After an engineer implements the FAC and CMC features together, users report that calls take almost one minute to complete and that they occasionally hear the reorder tone. Which two actions address this issue?( Choose two)
Refer to the exhibit. A collaboration engineer configures Cisco UCM to act as a DHCP server. What must be done next to configure the DHCP server?
An engineer troubleshoots outbound can failure on an ISDN-PRI circuit. The engineer ts suspecting the 'Incomplete Destination". Which debugs or commands are run in the voice gateway to troubleshoot the issue?
Which issue can occur if QoS is not deployed on a Cisco Collaboration architecture across the WAN?
Which DSCP service parameter is configured for Cisco TS endpomts and Cisco Communication Manager endpoints?
Given this H.323 gateway configuration and using Cisco best practices, how must the called party transformation pattern be configured to ensure that a proper ISDN type of number is set?
A.
B.
C.
D.
What is a characteristic of video traffic that governs QoS requirements for video?
An administrator configures the voicemail feature in a Cisco collaboration deployment. The user mailboxes must be configured when the Cisco Unity Connection server is configured. Which action accomplishes this task?
An organization is deploying a Cisco Unified Border Element for Webex calling. The engineer's voice gateway is a Cisco CSRlOOOv on version 17.x.x. How must the engineer configure G.729 codec to be the first priority for all calls, followed by GJHulaw and G.711alaw?
A)
B)
C)
D)
Refer to the exhibit. A user takes a phone from San Francisco to New York for a short reassignment. The phone was set up to use the San Francisco device pool, and device mobility is enabled on the Cisco UCM. The user makes a call that matches a route pattern in a route list that contains the Standard Local Route Group. To where does the call retreat?
Which task is required when configuring self-provisioning for an end user in Cisco UCM?
A high-speed network is often configured with a five-class QoS model. Which classes are
used in the model?
A Company s employees have been complaining that they have been unable to select options on the internal IVR of the help desk. IT support has been given Cisco UCM traces and below is the snippet of the SDP of the INVITE packet.
How is this issue resolved?
An engineer must configure codec on a Cisco Unified Border Element to prefer the G.711 ulaw and use G.711 codec as the
next The engineer logs In to the CUBE, enters the dial.peer configuration level, and runs the voice-class codec 100 command. Which set of commands completes the configuration?
A collaboration engineer inherits the responsibilities of another engineer. The previous engineer implemented a SIP integration between Cisco Unity Connection and Cisco UCM. Users can leave messages, but the Message Waiting Indicator is unconfigured. Which two actions must the engineer perform to enable MWI? (Choose two.)
Which configuration concept allows for high-availability on IM and Presence services in a UC environment?
Which call routing pattern is used for phone numbers that are in the E.164 format?
An engineer configures local roule group names to simplify a dial plan. Where does the engineer set the route groups according to the local route group names that are configured?
Which field is configured to change the caller ID information on a SIP route pattern?
During the Cisco IP Phone registration process, the TFTP download (ails. What are two reasons (or this issue? (Choose two.)
An administrator would like to set several Cisco Jabber configuration parameters to only apply to mobile clients (iOS and Android). How does the administrator accomplish this with Cisco Jabber 12.9 and Cisco UCM 12.5?
An engineer encounters third-party devices that do not support Cisco Discovery Protocol. What must be configured on the network to allow device discovery?
Which two features does Mobile and Remote Access support in a Cisco collaboration solution? (Choose two.)
Which two technical reasons make QoS a necessity in a video deployment? (Choose Two)
Refer to the exhibit. The SDP offer/answer has been completed successfully but there is no DTMF when users press keys. What is the cause of the issue?
An administrator is in the process of moving Cisco Unity Connection mailboxes between mailbox stores. The administrator notices that some mailboxes have active Message Waiting Indicators. What happens to these mailboxes when they are moved?
An administrator must implement a new Cisco Unity Connection cluster integrated with LDAP for users and SIP with Cisco UCM. Assuming a phone system and LDAP directory has been configured, how must the administrator add a new user mailbox with message waiting indication functionality to this setup?
Where would an administrator assign the system shadow location for implementing intercluster enhanced locations CAC in Cisco UCM?
A DTMF mismatch is occurring between an MGCP gateway registered FXS port and a Cisco Unified communications Manager SIP trunk. Which media resource can be leveraged to interwork this mismatch?
Which two features will access layer switches provide support providing high-quality voice and taking advantage of the full voice feature set? (Choose two.)
An engineer wants to manually deploy a CISCO Webex DX80 Video endpoint to a remote user. Which type of provisioning is configured on the endpoint?
Refer to exhibit.
A company recently deployed CISCO Jabber Users log in to Jabber by using their email address in a domain named
company com. The users report that they cannot register their telephony services when working from unless they use a VPN. An
engineer runs DNS lookup tool in Cisco Expressway-C to troubleshoot tie What IS me cause of the issue?
Which set of four functions are performed by Cisco Unified Border Element?
Refer to the exhibit.
An administrator is configuring a new phone on a Cisco UCM cluster and the phone failed to register. The Cisco UCM cluster is in non-secure mode. Which action resolves the issue?
What should be used to detect common issues on a Cisco IOS XE-based Local Gateway and generate an email?
Which information is needed to restore the backup of a Cisco UCM publisher successfully?
On a Cisco Catalyst Switch, which command is required to send CDP packets on a switch port that configures a Cisco IP phone to transmit voice traffic in 802.10 frames, tagged with the voice VLAN ID 221?
A company wants to provide remote users with access to its on-premises Cisco collaboration features. Which components are required to enable Cisco Mobile and Remote Access for the users?
An engineer configures a Cisco Unified Border Element and must ensure that the codecs negotiated meet the ITSP requirements. The ITSP supports G.7llulaw and G.729 for audio and H.264 for video. The preferred voice codec is G.711. Which configuration meets this requirement?
A.
B.
C.
D.
An administrator is configuring a new Cisco UCM with PSTN capabilities. Due to
bandwidth constraints, audio compression is used on the codec. DTMF must work as
expected because the customer is calling many call centers where the users must select
options in the call. Where is DTMF out-of-band in a CCM 12.5 with SIP-based gateway
configured?
What is the Cisco UCM sizing guidance for deployments of between 5.000 and 10,000 users or devices that use the medium Open Virtual Archive template?
By default. IP phones upgrade their images using the HTTP Service from the TFTP Server integrated into one or more of the call processing platforms. Which Port / Transport Protocol does this service use?
Drag and drop the SNMPv3 message types from the left onto the corresponding definitions on the right.
An engineer is notified that the Cisco TelePresence MX800 that is registered in Cisco Unified communications Manager shows an empty panel, and the Touch 10 shows a corresponding icon with no action when pressed. Where does the engineer go to remove the inactive custom panel?
An engineer configures a new phone in Cisco UCM The phone boots and gets IP when it connects to the network, however the phone fails to register With CISCO UCM, The engineer observes that the phone has a status Rejected In CISCO UCM
What must be verified first 'Mien troubleshooting the issue?
Which command must be defined before an administrator changes the linecode value on an ISDN T1 PRI in slot 0/2 on an IOS-XE gateway?
An engineer must deploy the Webex app to a Windows Virtual Desktop Infrastructure environment by using these settings:
• Thin client plugin: Installed
• Call service-enabled user: Media is optimized
• Calls on Webex app: Media is optimized
Which two command-line arguments are valid when running the installer? (Choose two.)
Which two recommendations are made to optimize Cisco UCM configuration to reduce the number of toll fraud incidents in an organization? (Choose two.)
An administrator set up Cisco UCM LDAP Directory and already synced the users to Cisco UCM from the Active Directory, but they forgot to set up feature group templates when. doing the import. Which action resolves the issue?
What describes the outcome when the trust boundary is defined at the Cisco IP phone?
Which location must be assigned to the SIP trunk to replicate enhanced location information via a SIP trunk?
Refer to the exhibit.
When a call is received on Cisco Unified Border Element. from which
lP does it allow a connection?
Refer to the exhibit. An administrator must replace the T1 card with an E1 card. What is the correct configuration if the administrator was asked to configure 12 time slots?
A.
B.
C.
D.
For Webex Calling, how are outbound transfers and forwards restricted for a particular call type?
A collaboration engineer configures Global Dial Plan Replication for multiple Cisco UCM clusters. The local cluster acts as the hub cluster, and the remaining clusters act as spoke clusters Which service must the engineer configure on the local cluster’
Refer to the exhibit. Calls to Cisco Unity Connection are failing across Cisco Unified Border Element when callers try to select a menu prompt Why is this happening and how is it fixed?
An administrator is asked to implement toll fraud prevention in Cisco UCM, specifically to restrict off-net to off-net call transfers. How is this implemented?
When a call Is delivered to a gateway, the calling and called party number must be adapted to the PSTN service requirements of the trunk group. If a call is destined locally, the + sign and the explicit country code must be replaced with a national prefix. For the same city or region, the local area code must be replaced by a local prefix as applicable. Assuming that a Cisco UCM has a SIP trunk to a New York gateway (area code 917). which two combinations of solutions localize the calling and called party for a New York phone user? (Choose two.)
A.
B.
C.
D.
E.
Which certificate does the Disaster Recovery System in Cisco UCM use to encrypt its communications?
Refer to the exhibit. A customer submits this debug output, captured on a Cisco IOS router. Assuming that an MGCP gateway is configured with an ISDN BRI interface, which BRI changes resolve the issue?
A.
B.
C.
D.
Which two types of devices are included in the conditionally trusted endpoints category of Cisco UCM? (Choose two.)
An engineer implements QoS in the enterprise network. Which command is used to verity the classification and marking on a Cisco IOS switch?
A Cisco Unity Connection Administrator must set a voice mailbox so that it is accessed from a secondary device. Which configuration on the voice mailbox makes this change?
A customer wants a video conference with five Cisco Telepresence 1X5000 Series systems. Which media resource is necessary in the design to fully utilize the immersive functions?
Which Cisco Unified communications manager configuration is required for SIP MWI integration?
A company has an excessive number of call transfers to local and long-distance PSTN from Cisco Unity Connection voicemail. Which action in the Cisco Unity Connection restriction table resolves this issue?
What are two differences between media flow-around and media flow-through on cisco unified Border element? (Choose two.)
An administrator configures international calling on a Cisco UCM cluster and wants to minimize the number of route patterns that are needed. Which route pattern enables the administrator to match variable-length numbers?
Which QoS marking is used when an administrator configures voice call signaling?
A Cisco voice gateway is configured to use a sip-kpml DTMF relay in global settings. A new SIP dial peer is configured for a third-party application that only supports an in-band DTMF relay. Which commands must an engineer run on the dial peer?
When a new SIP phone is registered to Cisco Unified communications Manager, it keeps failing and showing an “unprovisioned” error message in the phone display. Which problem is a possible cause of this issue?
What is the purpose of bandwidth management when designing a Cisco collaboration solution?
Refer to the Exhibit.
Which command is required to allow this media resource to handle Video Media streams?
An engineer is configuring IP telephony. The network relies on DHCP to provide TFTP server addresses to the endpoints. Policy requires the endpoints to receive two server addresses. Which DHCP option must be configured?
An engineer is deploying Webex app on Microsoft Windows computers. The engineer wants to ensure that the end users do not receive pop-IQ dialogues %'hen they start the application 'Much two actions ensure the end users are not promted to accept the end-user license (Choose two )
What happens to voice packets from an 8845 Cisco IP Phone at a properly configured QoS trust boundary?
Refer to the exhibit. Cisco Unified element is attempting to establish a call with Subcribers1, but the call fails. Cisco Unified Border Element then retries the same call with Subcribers2, and the call proceeds normally.
Which action resolves the issue?
An engineer configures Cisco UCM to prevent toll fraud. At which two points does the engineer block the pattern in Cisco UCM to complete this task? (Choose two.)
Which Cisco lM and Presence service handles failover and state changes in the cluster?
Regarding SIP integrations with Cisco Unified Communications Manager, if the Cisco Unity Connection is configured to listen for incoming IPv4 and IPv6 traffic, how should the addressing mode be set up in the Cisco Unity Connection?
Which mark is used when the Attendant Console Client application and the Cisco TSP send their traffic?
Refer to the exhibit.
You deploy Mobile and Remote Access for Jabber and discover that Jabber for Windows does not register to cisco Unified Communications Manager while outside of the office. What is a cause of this issue?
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Guidelines
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This is a lab item in which tasks will be performed on virtual devices.
• Refer to the Tasks tab to view the tasks for this lab item.
• Refer to the Topology tab to access the device console(s) and perform the tasks.
• Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
• All necessary preconfigurations have been applied.
• Do not change the enable password or hostname for any device.
• Save your configurations to NVRAM before moving to the next item.
• Click Next at the bottom of the screen to submit this lab and move to the next question.
• When Next is clicked, the lab closes and cannot be reopened.
Topology
Tasks
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The operations team started configuring network devices for a new site.
Complete the configurations to achieve these goals:
1. Ensure that port channel Po1 between DISTRO-SW01 and DISTRO-SW02 is operational using the LACP protocol. Configuration changes for this task must be made on DISTRO-SW01.
2. Ensure that traffic on VLAN 10 is carried as untagged traffic between DISTRO-SW01 and DISTRO-SW02.
3. Complete the Rapid-PVST+ configuration on DISTRO-SW2 by ensuring it it the secondary root switch for all VLANs in the range of 1 to 1005.
DISTRO-SW01
DISTRO-SW02
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What is required for Cisco UCM to accept SIP calls with a URI in the format of 'sip:2001@cucmpub.cisco.com'?
Which two functionalities does Cisco Expressway provide in the Cisco Collaboration architecture? (Choose two.) MGCP gateway registration
Refer to the exhibit. Unanswered calls do not reach the voicemail associated with the phones Instead, callers receive the default greeting Which action fixes the configuration?
A user reports that when receiving an inbound call on their IP Phone from the PSTN they are unable to transfer this call to another PSTN number What is the reason for this failure?
Which wildcard must an engineer configure to match a whole domain in SIP route patterns?
How is bandwidth allocated to traffic flows in a flow-based WFQ solution?
Which method is used to avoid toll fraud with Cisco Unified Communications Manager calls?
Which two steps should be taken to provision a phone after the Self-Provisioning feature was configured for end users? (Choose two.)
SIP proxies have operations defined in RFC 3261 and supporting extensions. Though no lETF RFC completely defines how SBCs must function. SBCs evolved over the years.
Which two operations demonstrate the high-level differences between SBCs and SIP proxies? (Choose two.)
Refer to the exhibit. A collaboration engineer adds an analog gateway to a Cisco UCM cluster. The engineer chooses MGCP over SCCP as the gateway protocol. Which two actions ensure that the gateway registers? (Choose two.)
How does Cisco UCM perform a digit analysis on-hook versus off-hook for an outbound call from a Cisco IP phone that is registered to Cisco UCM?
Which SNMP service must be activated manually on the Cisco Unified Communications Manager after installation?
What is the maximum number of servers that are in an IM and Presence presence redundancy group?
An engineer is configuring a Cisco IOS XE gateway to join three callers together in the same conversation. Which IOS XE media resource must the engineer configure to accomplish this goal?
Which type of message must an administrator configure in the SIP Trunk Security Profile for a Message Waiting Indicator light to work with a SIP integration between Cisco UCM and Cisco Unity Connection?
Which Cisco Collaboration Edge architecture product allows remote endpoints to leverage corporate on-premises Cisco Unified Communications infrastructure?
Which settings are needed to configure the SIP route pattern in Cisco Unified Communications Manager?
An engineer must create a route pattern for a SIP trunk with the pattern named Unity_Con_SIP_Trunk and a voicemail pilot number 8000/< None > in Cisco Unity Connection. Which value must the engineer enter for the Gateway/Route List field?
Which DiffServe PHB preserves backward compatibility with any IP precedence scheme?
A customer asked to integrate Unity Connection with Cisco UCM using SIP protocol. Which two features must be enabled on SIP security profiles? (Choose two.)
An engineer is troubleshooting a Primary Rate Interface that fails to come up on a H.323 production voice gateway. Layer 1 and Layer 2 configurations were validated successfully Which Cisco IOS command must be run to debug the issue with the least impact on network performance?
Endpoint A is attempting to call endpoint B. Endpoint A only supports G.711ulaw with a packetization rate of 20 ms, and endpoint B supports packetization rate of 30 ms for G.711ulaw. Which two media resources are allocated to normalize packetization rates through transrating? (Choose two.)
What are two characteristics of jitter in voice and video over IP communications? (Choose two.)
TESTED 14 Jan 2026
