300-815 Practice Exam Free – 50 Questions to Simulate the Real Exam
Are you getting ready for the 300-815 certification? Take your preparation to the next level with our 300-815 Practice Exam Free – a carefully designed set of 50 realistic exam-style questions to help you evaluate your knowledge and boost your confidence.
Using a 300-815 practice exam free is one of the best ways to:
- Experience the format and difficulty of the real exam
- Identify your strengths and focus on weak areas
- Improve your test-taking speed and accuracy
Below, you will find 50 realistic 300-815 practice exam free questions covering key exam topics. Each question reflects the structure and challenge of the actual exam.
DRAG DROP - Drag and drop the commands from the bottom to the blanks in the code to implement a translation rule to allow only 11 digits to be received over a SIP trunk to a SIP provider. The Cisco UCM is currently sending calls to the Cisco Unified Border Element in E.164 format. Not all options are used.
After configuring a Cisco CallManager Express with Cisco Unity Express, inbound calls from the PSTN SIP trunk receive a ring tone for 20 seconds and then a busy signal instead of voicemail. Which configuration fixes this problem?
A. Router(config)# voice service voip Router(conf-voi-serv)#allow-connections h323 to h323
B. Router(config)#dial-peer voice 2 voip Router(config-dial-peer)#no vad
C. Router(config)# voice service voip Router(conf-voi-serv)#allow-connections voice-mail mod
D. Router(config)# voice service voip Router(conf-voi-serv)#no supplementary-service sip moved-temporarily
Customers that call into a company’s IVR report that when they try to select an option, none of the prompts work. The administrator determines that the calls are coming in across an H.323 gateway. While analyzing the dial peer that points toward Cisco UCM, the administrator notices that no DTMF method is configured. Which command resolves this issue?
A. dial-peer voice 2 voipdtmf-relay sip-kpml
B. dial-peer voice 2 voipdtmf-relay h245-alphanumeric
C. dial-peer voice 2 voipdtmf-relay sip-notify
D. dial-peer voice 2 potsdtmf-relay h245-alphanumeric
An administrator is working on an issue between the customer's Cisco Unified Border Element and the service provider. The provider only wants to see mid-call signaling from the Cisco Unified Border Element for fax calls. Which command must be configured on Cisco Unified Border Element?
A. midcall-signaling passthru
B. no update-callerid
C. midcall-signaling passthru media-change
D. midcall-signaling preserve-codec
The SIP session refresh timer allows the RTP session to stay active during an active call. The Cisco UCM sends either SIP-INVITE or SIP-UPDATE messages in a regular interval of time throughout the active duration of the call. During a troubleshooting session, the engineer finds that the Cisco UCM is sending SIP-UPDATE as the SIP session refresher, and the engineer would like to use SIP-INVITE as the session refresher. What configuration should be made in the Cisco UCM to achieve this?
A. Change Session Refresh Method on the SIP profile to INVITE.
B. Increase Retry INVITE to 20 seconds on the SIP profile.
C. Enable Send send-receive SDP in mid-call INVITE on the SIP profile.
D. Enable SIP Rel1XX Options on the SIP profile.
Refer to the exhibit. An administrator just upgraded to Cisco UCM to version 14 and started SIP implementation with some new SIP trunks. During the testing, an error was reported when making a call. Which action resolves the issue?
A. Make sure the destination number is configured correctly and the device is registered.
B. Disable SIP Rel1XX Options.
C. Change DTMF Signaling Method to “RFC 4833”.
D. Change to a valid range.
An engineer has two Cisco UCM clusters and wants them using ILS with TLS Certificates. Cluster A (Pub and 1 Subscriber) will be the hub, and Cluster B (Pub and 1 Subscriber) will be the spoke. Both clusters have self-signed certificates. The engineer has exchanged Publisher A and Subscriber B Tomcat certificates, but the connection fails. What is the cause of the failure?
A. The password is incorrect.
B. Cluster IDs are not unique.
C. The Tomcat certificate from Cluster B must be the Publisher.
D. The engineer needs to exchange the CallManager certificate.
Where is the dtmf-relay command configured on Cisco Unified Border Element?
A. in the voice-class VoIP configuration
B. in the VoIP dial peer
C. in global SIP configuration
D. in the VoIP or POTS dial peers
Cisco UCM has 100,000 entries in the database learned through the ILS Service. Parameter ILS Max Number of Learned Objects in Database value is set to 100,000. What will happen to learned data when the service parameter value is reduced to 50,000?
A. Cisco UCM does not write additional ILS learned objects to the database and will delete the last 50,000 entries learned to keep it to the service parameter value.
B. Cisco UCM does not write additional ILS learned objects to the database and keeps the existing database entries.
C. Cisco UCM will overwrite an entry for newly learned data and keep the parameter value at 100,000.
D. Cisco UCM does not write additional ILS learned objects to the database and will delete the first 50,000 entries learned to keep it to the service parameter value.
An administrator is configuring Meet-me conferencing in a Cisco UCM deployment and has created the Meet-me number and ensured that it is in a partition accessible by all devices. Which two additional steps must the administrator perform? (Choose two.)
A. Ensure that conferencing-initiating devices are using a media resource group list that contains at least one Cisco UCM conference bridge.
B. Disable Early Media on the SIP profile of all devices that will use Meet-me conferencing.
C. Enable Meet-me conferencing in enterprise parameters.
D. Ensure that all devices have G.729 enabled.
E. Update the softkey template on all phones to ensure that they contain the Meet-me softkey.
ABC company has decided to implement hunt groups to help distribute calls between members. In order to implement this, the administrator must configure hunt list, hunt groups, and line groups on Cisco UCM. Which distribution algorithms should the administrator implement?
A. Top Down, Round Robin, Broadcast
B. Top Down, Circular, Broadcast
C. Top Down, Round Robin, Distribute
D. Sequential, Circular, Broadcast
Which description of RTP timestamps or sequence numbers is true?
A. The sequence number is used to detect losses.
B. Timestamps increase by the time “carrying” by a packet.
C. Sequence numbers increase by four for each RTP packet transmitted.
D. The timestamp is used to place the incoming audio and video packets in the correct timing order (playout delay compensation).
Refer to the exhibit. An administrator troubleshoots an issue where each user's 4-digit directory number is presented as the calling number when dialing out to the PSTN. This 4-digit calling number prevents the external user from calling the internal user back. Which two actions must the administrator perform to resolve the issue? (Choose two.)
A. Update the SIP profile on the SIP trunk by checking “enable external presentation name and number”
B. Change the calling line ID presentation on the SIP trunk to allow.
C. Create a calling party transformation patter that matches the desired directory number and add a mask to modify the calling number
D. Create a called party transformation pattern that matches the desired directory number and add a mask to modify the calling number
E. Add a calling party transformation CSS to the SIP trunk.
An engineer must configure a secure SIP trunk with a remote provider, with a specific requirement to use port 5065 for inbound and otubound traffic. Which two items must be configured to complete this configuration? (Choose two.)
A. Incoming Port in SIP Information section of the SIP Trunk configuration.
B. Incoming Port in Security Information of the SIP Profile configuration.
C. Destination Port in SIP Information section of the SIP Trunk configuration
D. Incoming Port in SIP Trunk Security Profile configuration
E. Destination Port in SIP Trunk Security Profile configuration
A user in location X dials an extension at location Y. The call travels through a QoS-enabled WAN network, but the user experiences choppy or clipped audio. What is the cause of this issue?
A. missing Call Admission Control
B. codec mismatch
C. ptime mismatch
D. phone class of service issue
A customer must advertise some numbers through GDPR on Call Manager. The Cisco UCM already is advertising some URIs to other clusters with GDPR, but the customer wants to ensure that specific numbers are advertised. Where under the Cisco UCM Admin page > Call Routing > Global Dial Plan Replication must that set of numbers be configured?
A. Route Numbers
B. Advertised Patterns
C. Learned Numbers
D. Route Patterns
Which elements does Cisco cloud mobility for collaboration include?
A. Cisco Webex Collaboration Cloud Services
B. Cisco Collaboration Cloud
C. Cisco Collaboration Cloud and Cisco Webex Collaboration Cloud Services
D. Cisco Collaboration Cloud and Cisco Mobile and Remote Access Collaboration Cloud Services
Management wants to change the initial announcements for one of the existing call hunt groups. A new set of announcement audio file was provided. Which two configuration steps must the administrator take to accomplish this change? (Choose two.)
A. Identify the MOH audio source ID associated to one of the line group member’s “Network Hold MOH Audio Source”.
B. Identify the MOH audio source ID associated to “Network Hold Source & Announcements” under the Queuing section of the hunt pilot.
C. Identify the configured announcement names to change under the MOH audio source section, then upload the new files to the respective announcements under the Announcement section.
D. Identify the MOH audio source ID associated to one of the line group member’s “User Hold MOH Audio Source”.
E. Identify the configured announcement names to change under the Announcement section, and assign the uploaded files to the Queueing section of the hunt pilot.
An engineer must configure a Cisco UCM hunt list so that calls to users in a line group are routed to the first idle user and then the next. Which distribution algorithm must be configured to accomplish this task?
A. broadcast
B. top down
C. longest idle time
D. circular
What is a component of Cisco Unified Mobility?
A. Unified IVR
B. Mobile Connect
C. Smart Client Support
D. Single Number Connect
Refer to the exhibit. All calls from site A to site B are failing, and the issue has been identified as a media negotiation problem. Which configuration change resolves this issue?
A. Increase the bandwidth allowance between the RTP_Reg and SJ_Reg regions to 64 kbps.
B. Enable Early Offer on the SIP trunk.
C. Create a new audio codec preference list with G.711 U-law 64k as the highest priority and apply it to RTP_Reg and SJ_Reg.
D. Disable G.722 on all devices at both sites.
The Cisco Unified Communications Manager Dialed Number Analyzer allows analysis of calls from which two devices? (Choose two.)
A. translation patterns
B. device pools
C. CTI ports
D. CTI route points
E. IP phones
An administrator discovers that employees are making unauthorized long-distance and international calls from logged-off Extension Mobility phones when the authorized users are away from their desks. Which two configurations should the administrator configure in the Cisco UCM to avoid this issue? (Choose two.)
A. Add the long-distance & international pattern’s partitions to the calling search space of the physical phone.
B. Remove the long-distance & international pattern’s partitions to the calling search space of the physical phone.
C. Add the long-distance & international pattern’s partitions to the calling search space of the device profile.
D. Add the long-distance & international pattern’s partitions to the calling search space of the physical phone’s directory number.
E. Remove long-distance & international pattern’s partitions from the calling search space of the device profile.
Why would RTP traffic that is sent from the originating endpoint fail to be received on the far endpoint?
A. The far end connection data (c=) in the SDP was overwritten by deep packet inspection in the call signaling path.
B. Cisco Unified Communications Manager invoked media termination point resources.
C. The RTP traffic is arriving beyond the jitter buffer on the receiving end.
D. A firewall in the media path is blocking TCP ports 16384-32768.
A support engineer is troubleshooting a voice network. When conducting a search for call setup details related to calling search space issues, which trace files should be investigated?
A. CallManager traces
B. CTI Manager traces
C. Cisco IP Manager Assistant
D. Call logs
In Cisco Unified Communications Manager, which tool do you use to check SIP traces?
A. MTP
B. CCSIP
C. RTMT
D. OS Administration Page
Which two extended capabilities must be configured on dial peers for fast start-to-early media scenarios (H.323 to SIP interworking)? (Choose two.)
A. DTMF
B. BFCP
C. VIDEO
D. FAX
E. AUDIO
If all patterns below are configured in Cisco Unified Communications Manager which would be used when dialing the pattern "123"?
A. 12!
B. 12X (urgent priority set)
C. 1XX (urgent Priority Set)
D. 12[2-5]
Users report strange behaviors when they call external numbers from the company phone system. The company is using Cisco 8865 phones with Cisco UCM connected to a gateway with two TI circuits. There is no indication of the possible problem, but the connection seems to be established. Which command meets the requirement to capture all the data needed to debug the problem?
A. debug mgcp media tracelevel critical
B. debug mgcp media tracelevel critical all
C. debug mgcp media tracelevel critical verbose
D. debug mgcp media tracelevel moderate
An engineer set up and successfully tested a TEHO solution on the Cisco UCM. PSTN calls are routed correctly using the IP WAN as close to the final PSTN destination as possible. However, suddenly, calls start using the backup local gateway instead. What is causing the issue?
A. route pattern
B. LAN connectivity
C. WAN connectivity
D. route list and route group
A single site reports that when they dial select numbers, the call connects, but they do not get audio. The administrator finds that the calls are not routing out of the normal gateway but out of another site's gateway due to a TEHO configuration. What is the next step to diagnose and solve the issue?
A. Verify that the route pattern has the correct calling-party transformation mask.
B. Verify that IP routing is correct between the gateway and the IP phone.
C. Verify that the dial peer of the gateway has the correct destination pattern configured.
D. Verify that the route pattern is not blocking calls to the destination number.
An administrator discovers that employees are making unauthorized long-distance and international calls from logged-off Extension Mobility phones when the authorized users are away from their desks. Which two configurations should the administrator configure in the Cisco UCM to avoid this issue? (Choose two.)
A. Add the long-distance & international pattern’s partitions to the calling search space of the physical phone.
B. Remove the long-distance & international pattern’s partitions from the calling search space of the physical phone’s directory number.
C. Add the long-distance & international pattern’s partitions to the calling search space of the device phone.
D. Add the long-distance & international pattern’s partitions to the calling search space of the physical phone’s directory number.
E. Remove long-distance & international pattern’s partitions from the calling search space of the device phone.
Refer to the exhibit. An administrator is trying to test outbound calls toward the ITSP but cannot complete the call and receives a SIP error. ITSP is consulted, and the issue is that the ANI that is being sent is not the DID provided 8005532447. Which configuration change sends the correct ANI on the INVITE sent to ITSP to fix the error?
A. voice class sip-profiles 2request INVITE sip-header To modify “sip:(.*)@” sip:8005532447@
B. voice translation-rule 3rule 1/.*/ /8005532447/
C. voice class sip-profiles 1request INVITE sip-header Diversion modify “sip:(.*)@” “sip:8005532447@”
D. voice translation-rule 4rule 1/^.*(8005532447)/ /1/
Refer to the exhibit. A call made through the Cisco Unified Border Element to pilot 2000 is failing. What is causing the call to fail?
A. The Cisco Unified Border Element is not receiving a response to its OPTION keepalives.
B. The destination pattern is incorrect for the dialed number.
C. VAD was not disabled on the outgoing dial peer.
D. No codecs are configured on the dial peers.
An engineer must configure call queuing under a Hunt Pilot. After the engineer receives the audio file that will be played to callers during queuing, which two steps should be taken to complete the configuration? (Choose two.)
A. Assign the uploaded audio file to “Network Hold MOH Source & Announcements” under Hunt Pilot’s Queuing section.
B. Upload the audio file in “TFTP File Management” via OS Administration GUI.
C. Assign the uploaded audio file to the hunting Line Group member’s “User Hold MOH Audio Source”.
D. Assign the uploaded audio file to the hunting Line Group member’s “Network Hold MOH Audio Source”.
E. Upload the audio file in “MOH Audio File Management” via CM Administration GUI.
Refer to the exhibit. A Cisco Unified Border Element continues to send 180/183 with the required: 100rel header to Cisco UCM, and the call eventually disconnects. How is the issue resolved?
A. Disable “SIP Rel1XX Options” and “Early Offer Support” on the SIP Profile Configuration Page in Cisco UCM.
B. Enable “SIP Rel1XX Options” and “Early Offer Support” on the SIP Profile Configuration Page in Cisco UCM.
C. Disable “Send send-receive SDP in mid-call INVITE” on the SIP Profile Configuration Page in Cisco UCM.
D. Enable “Early Offer support for voice and video calls” on the SIP Profile Configuration Page in Cisco UCM.
A user’s phone is already configured for Single Number Reach, and the user wants a feature to move an active call from a mobile phone to a desk phone and vice-versa. As an administrator, which additional configuration should be made to fulfill the user’s request?
A. Use Dialed Number Analyzer to determine if the user extension can dial the mobile phone.
B. Add the mobility key to the softkey template that the desk phone is using.
C. Check to make sure that the Resume softkey option appears on the desk phone.
D. Confirm that the desk phone is subscribed to Cisco Extension Mobility.
When you troubleshoot H.323 call setup, which message informs you that the called party is being notified about the call?
A. ALERTING
B. PROCEEDING
C. CONNECT
D. RINGING
A customer reports audio quality issues between video endpoints in the HQ location in California and one of the branches in Texas. Which two actions must RTCP take to troubleshoot this issue? (Choose two.)
A. Allow for VAD to be used for calls using the G7.29 codec, which reduces the usage of the WAN bandwidth and saves around 30% of bandwidth per call
B. Configure the rtcp keepalive command in Cisco Unified Border Element to generate reports, which can be reviewed using the debug voip rtcp packet command.
C. Encrypt the media to stop rogue devices from replying and putting that traffic back on the WAN, which avoids any extra bandwidth and ensures the quality of the calls.
D. Gather statistics on a media connection and information such as packets sent, lost packets, jitter, feedback, and round-trip delay. This information can help isolate the type of audio quality issues and the direction of the affected traffic.D. Compress the headers of RTP traffic to lower the bandwidth consumption over the WAN, which allows more calls with less bandwidth consumed.
An IP Telephony administrator is deploying IP phones. The administrator has an existing Cisco UCME router with several SCCP & SIP phones registered. The administrator receives a request for a new SIP phone with MAC address 1111.2222.3333 and directory number 2050 to be added in the Cisco UCME. Which two configurations should be added in CME to support this request? (Choose two.)
A.
B.
C.
D.
E.
Refer to the exhibit. The Cisco Unified Border Element receives an INVITE matching inbound dial peer 5002. The outbound dial peer supports only iLBC, and a Local Transcoding Interface is allocated. Based on the configuration and SDP from the INVITE message, which codec is chosen by Cisco Unified Border Element for the inbound call leg?
A. G.729r8
B. G.711 A-law
C. G.711 U-law
D. G.729br8
An administrator is trying to apply configuration changes on Cisco CME. When the users registered on Cisco CME to dial a local number to a PSTN call, the Cisco CME sends an incorrect number of digits. What translation rule fixes the issue and sends the correct number of digits?
A. voice translation-rule 1rule 1 // // type any subscriber plan any isdn
B. voice translation-rule 1rule 1 /^4…$/ /2404/ type any national plan any isdn
C. voice translation-rule 1rule 1 /^4…$/ /9132404/ type any subscriber plan any isdn
D. voice translation-rule 1rule 1 /^4…$/ /2404/ type any subscriber plan any isdn
A solution for a large company is being reconfigured to optimize for cost saving. The company has an extensive global QoS-enabled network with enough bandwidth to create a converged network. Local calls are relatively inexpensive in countries the company have operations, but long distance and international calls are expensive. Which type of configuration supported by Cisco UCM would help optimize cost control for this company?
A. standard local route groups for mobile users
B. Mobile and Remote Access
C. high complex codec support like G.729 to minimize bandwidth usage
D. tail end hop off
Which section under the Real-Time Monitoring Tool allows for reviewing the call flow and signaling for a SIP call in real time?
A. Analysis Manager > Inventory > Trace File Repositories
B. System > Tools > Trace and Log Central
C. Voice/Video > Session Trace Log View > Real Time Data
D. Voice/Video > Session Trace Log View > Open From Local Disk
An administrator deployed a third-party H.323 gateway in a voice environment, but users report call failures when using features like call hold or call transfer. What are two reasons that these features fail? (Choose two.)
A. The CSS of the transfer initiating line does not contain the partition of the supplementary feature extension (DirectTransfer or MoH Number).
B. The MTP that is configured for use within the H.323 gateway configuration is configured as a trusted source, but the third-party gateway does not trust the signing root CA certificate of the MTP certificate.
C. The MTP does not support the negotiated codec, and media renegotiating during the call is not supported.
D. The Media Resource Group List of the H.323 gateway contains only transcoders and conference bridges but no MTP.
E. The third-party gateway does not support supplementary features, so Media Termination Point (MTP) must be inserted.
Refer to the exhibit. When setting up a new connection to Cisco UCM, the engineer must use out-of-band DTMF. Which configuration meets this requirement?
A. dtmf-relay h245-alphanumeric
B. dtmf-relay sip-kpml
C. dtmf-relay cisco-rtp
D. dtmf-relay rtp-nte
A company has users that are logged in to hunt groups. However, there is a requirement for hunt group configurations to provide an option to turn on audible ringtones when calls to a line group arrive at a phone that is logged out and on a break. This ringtone alerts a logged-out user that there is an incoming call to a hunt list to which the line is a member, but the call does not ring at the phone of that line group member because of the logged-out status. Which action meets this requirement?
A. Configure the HLog softkey on the phone so that while a user is logged off, it plays an audible tone when a call is missed.
B. Set the service parameter Enterprise Feature Access number for hunt group logout and set up an access number.
C. Set the service parameter Party Entrance Tone to “True.”
D. Configure the service parameter hunt group logoff notification and specify the name of the ringtone file.
Calls are not working when sent from a Cisco Unified Border Element to a service provider. After investigating the logs, the engineer notes that the Cisco Unified Border Element is sending the extension only. How is the issue addressed in the configuration?
A. voice class request sip-header diversion
B. sip-header contact modify
C. voice class request sip-header modify
D. request invite sip-header diversion modify
An administrator manages an environment with mobile users who commonly move between locations and take IP phones to remote sites. When mobile users are at one of the sites, users report issues with call quality, such as the audio cutting in and out. In addition, the affected area has a low bandwidth connection compared to other sites, so the administrator has put these devices in a region with an inter-region restriction of 8 kbps per call. Which feature must the administrator configure to mitigate the issue?
A. Location Bandwidth Manager
B. Extension Mobility
C. Device Mobility
D. Extension Mobility Cross Cluster
Refer to the exhibit. A collaboration engineer is troubleshooting an issue where the PSTN calls of a Cisco UCM IP phone user are not reaching the PSTN gateway. Which action resolves the issue?
A. Change the calling search space of the user’s line or device.
B. Change the “Call Classification” to “OnNet” on the route pattern.
C. Ensure that the user’s phone is assigned to a device pool with the correct local route settings.
D. Deselect “Block this pattern” on the route pattern.
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