CCNP Collaboration 300-815 Online Prep Questions

1. 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?

2. Which configuration must an administrator perform to display Translation Pattern operations in Cisco Unified Communications Manager SDL traces?

3. Which section under the Real-Time Monitoring Tool allows for reviewing the call flow and signaling for a SIP call in real time?

4. Why would RTP traffic that is sent from the originating endpoint fail to be received on the far endpoint?

5. Refer to the exhibit.





An administrator is troubleshooting a problem in which some outbound calls from an internal network to the Internet telephony service provider are not getting connected, but some others connect successfully. The firewall team found that some call attempts on port 5060 came from an unrecognized IP that has not been defined in the firewall rule.

What should the administrator configure in the Cisco Unified Border Element to fix this issue?

6. Refer to the exhibit.





A user dials 84969010 and observes that the call is not routed immediately. The administrator notices that after matching the fixed-length translation pattern, the call hits the +! pattern and waits for interdigit timeout.

What should be configured to ensure that the call routes out immediately?

7. An engineer is configuring a call park feature in Cisco Unified Communications Manager Express.

Which command does the engineer use to ensure that the call is reverted to the user after 60 seconds?

8. Refer to the exhibit.





DN 1003 was the last to ring during the most recent call.

Which hunting method ensures that DN 1005 is presented with the next call when the hunt pilot is dialed?

9. 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?

10. Cisco SIP IP telephony is implemented on two floors of your company. Afterward, users report intermittent voice issues in calls established between floors. All calls are established, and sometimes they work well, but sometimes there is one-way audio or no audio. You determine that there is a firewall between the floors, and the administrator reports that it is allowing SIP signaling and UDP ports from 20000 to 22000 bidirectionally.

What are two possible solutions? (Choose two.)

11. The administrator of ABC company is troubleshooting a one-way audio issue for a call that uses H.323 protocol (slow-start mode). The administrator requests that you provide the IP and port information of the Real-Time Transport Protocol traffic that had the one-way audio call.

You gather the H.225 and H.245 messages for one of the one-way audio calls.

Where can you find the RTP IP and port information for both sides? (Note: This call flow has not invoked any media resources like MTP or transcoders).

12. A company has an SRST gateway running an IOS XE image. The company plans to enable the IPv6 addressing companywide.

To enable the IPv6 in a unified SRST gateway to support SIP phones, what are two supported supplementary features for an IPv6 fallback scenario? (Choose two.)

13. An administrator is implementing a new dial-plan on Cisco Unified Border Element. The administrator must ensure that incoming dial-peers are matched based on the IP address from where the incoming request originates.

Which dial-peer configuration should be applied to accomplish this requirement?

✑ dial-peer voice 1 voip incoming url via

✑ dial-peer voice 1 voip incoming url request

✑ dial-peer voice 1 voip incoming called-number incoming url to

14. Which IOS command creates a SIP-enabled dial peer?

15. A customer is using a SIP trunk to route calls to ITSP to decrease the possibility of downtime, the customer invested in a failover device.

How does the customer ensure reachability to ITSP, so that if one device on ITSP fails, the calls will be routed to another device?

16. Where is the dtmf-relay command configured on Cisco Unified Border Element?

17. Which action is correct with respect to toll fraud prevention configuration in the Cisco Unified Communications Manager Express?

18. Refer to the exhibit.





In an active SIP call between phone user A and phone user B, phone A initiates a call transfer to phone user C.

Which two scenarios are correct? (Choose two.)

19. End users at a new site report being unable to hear the remote party when calling or being called by users at headquarters. Calls to and from the PSTN work as expected.

To investigate the SIP signaling to troubleshoot the problem, which field can provide a hint for troubleshooting?

20. What is a component of Cisco Unified Mobility?

21. For s SIP to SIP call flow, when does Cisco Unified Border Element require transcoding resources for DTMF?

22. Which two descriptions of the Standard Local Route Group deployment are true? (Choose two.)

23. Which configuration element of a hunt group allows for changing Calling Party Transformations settings?

24. 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?

25. Which two types of authentication are supported for the configuration of Intercluster Lookup Service? (Choose two.)

26. An administrator is troubleshooting call failures on an H.323 gateway via the CLI.

To see signaling for media and call setup, which two debugs must the administrator turn on? (Choose two).

27. What are the elements for Device Mobility configuration?

28. An engineer must route all SIP calls in the form of <user>@example.com to the SIP trunk gateway corporate local.

Which two SIP route patterns can be used to accomplish this task? (Choose two.)

29. Calls to a particular extension are not routing to voicemail. The user reaches the voicemail system from the handset by pressing the Messages button.

Which configuration parameter causes this problem?

30. When the services key is pressed Cisco Extension Mobility does not show up.

What is the cause of the issue?

31. Refer to the exhibit.





Users report that outbound PSTN calls from phones registered to Cisco Unified Communications Manager are not completing. The local service provider in North America has a requirement to receive calls in 10-digit format. The Cisco Unified CM sends the calls to the Cisco Unified Border Element router in a globalized E.164 format. There is an outbound dial peer on Cisco Unified Border Element configured to send the calls to the provider. The dial peer has a voice translation profile applied in the correct direction but an incorrect voice translation rule applied, which is shown in the exhibit.

Which rule modified DNIS in the format that the provider is expecting?

32. When configuring hunt groups, where do you add the individual directory numbers that will be part of the group?

33. Which configuration element of a hunt group allows for changing Calling Party Transformations settings?

34. Which two types of authentication are supported for the configuration of Intercluster Lookup Service? (Choose two.)

35. Which two configuration parameters are prerequisites to set Native Call Queuing on Cisco Unified Communications Manager? (Choose two.)

36. What is the relationship between partition, time schedule, and time period in Time-of-Day routing in Cisco Unified Communications Manager?

37. Configure Call Queuing in Cisco Unified Communications Manager.

Where do you set the maximum number of callers in the queue?

38. A user reports that when they attempt to log out from the Cisco Extension Mobility service by pressing the Services button, they cannot log out.

What is the most likely cause of this issue?

39. What is a component of Cisco Unified Mobility?

40. When the services key is pressed Cisco Extension Mobility does not show up.

What is the cause of the issue?

41. A user reports when they press the services key they do not receive a user ID and password prompt to assign the phone extension.

Which action resolves the issue?

42. What are the elements for Device Mobility configuration?

43. Which services are needed to successfully implement Cisco Extension Mobility in a standalone Cisco Unified Communications Manager server?

44. Refer to the exhibit.





In an active SIP call between phone user A and phone user B, phone A initiates a call transfer to phone user C.

Which two scenarios are correct? (Choose two.)

45. Refer to the exhibit.





Users report that when they dial to Cisco Unity Connection from an external network, they cannot enter any digits. Assuming only in-band DTMF is supported, what is a reason for this malfunction?

46. The administrator of ABC company is troubleshooting a one-way audio issue for a call that uses H.323 protocol (slow-start mode). The administrator requests that you provide the IP and port information of the Real-Time Transport Protocol traffic that had the one-way audio call.

You gather the H.225 and H.245 messages for one of the one-way audio calls.

Where can you find the RTP IP and port information for both sides? (Note: This call flow has not invoked any media resources like MTP or transcoders).

47. Which two extended capabilities must be configured on dial peers for fast start-to-early media scenarios (H.323 to SIP interworking)? (Choose two.)

48. When you troubleshoot H.323 call setup, which message informs you that the called party is being notified about the call?

49. End users at a new site report being unable to hear the remote party when calling or being called by users at headquarters. Calls to and from the PSTN work as expected.

To investigate the SIP signaling to troubleshoot the problem, which field can provide a hint for troubleshooting?

50. Why would RTP traffic that is sent from the originating endpoint fail to be received on the far endpoint?

51. An administrator is troubleshooting call failures on an H.323 gateway via the CLI.

To see signaling for media and call setup, which debug must the Administrator turn on?

52. What is first preference condition matched in a SIP-enabled incoming dial peer?

53. Cisco SIP IP telephony is implemented on two floors of your company. Afterward, users report intermittent voice issues in calls established between floors. All calls are established, and sometimes they work well, but sometimes there is one-way audio or no audio. You determine that there is a firewall between the floors, and the administrator reports that it is allowing SIP signaling and UDP ports from 20000 to 22000 bidirectionally.

What are two possible solutions? (Choose two.)

54. Which section under the Real-Time Monitoring Tool allows for reviewing the call flow and signaling for a SIP call in real time?

55. Which description of RTP timestamps or sequence numbers is true?