300-815 Online Practice Questions and Answers

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. It is determined 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 solutions for this issue? (Choose two.)

A. Go to the SIP profile assigned to these IP phones in Cisco UCM and change the range of media ports to 16384-32767

B. Ask the firewall administrator to change the ports to TCP.

C. Ask the firewall administrator to change the range of UDP ports to 16384-32767.

D. Go to the SIP profile assigned to these IP phones in Cisco UCM and change the range of media ports to 20000-22000.

E. Go to System Parameters in Cisco UCM and change the range of media ports to 20000-22000.

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

Refer to the exhibit.

An engineer is troubleshooting an issue where inbound calls are failing after they are transferred. The provider reports that UPDATE is not supported, and this is causing the calls to fail. Which command should resolve this issue?

A. no midcall-signaling passthru

B. no update-callerid

C. no contact-passing

D. rel1xx require "100rel"

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.)

A. three-way conference

B. secure SIP lines

C. T.38 fax relay

D. transcoding

E. SIP trunk

Refer to the exhibit.

An engineer is troubleshooting a call-establishment problem between Cisco Unified Border Element and Cisco UCM. Which command set corrects the issue?

A. SIP binding in SIP configuration mode: voice service voip sip bind control source-interface GigabitEthernet0/0/1 bind media source-interface GigabitEthernet0/0/1

B. SIP binding in dial-peer configuration mode: dial-peer voice 100 voip voice-class sip bind control source-interface GigabitEthernet0/0/0 voice-class sip bind media source-interface GigabitEthernet0/0/0

C. SIP binding in dial-peer configuration mode: dial-peer voice 300 voip voice-class sip bind control source-interface GigabitEthernet0/0/1 voice-class sip bind media source-interface GigabitEthernet0/0/1

D. SIP binding in SIP configuration mode: voice service voip sip bind control source-interface GigabitEthernet0/0/0 bind media source-interface GigabitEthernet0/0/0

Refer to the exhibit.

Users report that outbound PSTN calls from phones registered to Cisco UCM are not completing. The local service provider in North America has a requirement to receive calls in 10-digit format. The Cisco UCM 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 rule modifies DNIS in the format that the provider is expecting?

A. rule 1 /^\+\([^1].*\)/ /011\1/

B. rule 1/^\+1\([2-9]..[2-9]......$\)/ /\1/

C. rule 1 /^\([2-9]..[2-9]......$\)/ /\1/

D. rule 1 /^\+1\([2-9]..[2-9]......$\)/ /\0/

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]

Which two types of distribution algorithm are within a line group? (Choose two.)

A. random

B. circular

C. highest preference

D. top down

E. bottom up

Refer to the exhibit.

A company needs to ensure that all calls are normalized to + E164 format. Which configuration will ensure that the resulting digit string +14085554001 is created and will be routed to the E.164 routing schema?

A. Calling Party Transformation Mask of +14085554XXX

B. Calling Party Transformation Mask of +1408555XXXX

C. Called Party Transformation Mask of +1408555[35]XXX

D. Called Party Transformation Mask of +14085554XXX

When locations-based Call Admission Control denies the call, which two masks can AAR apply when routing the call through the PSTN? (Choose two.)

A. AAR destination mask

B. called party transform mask

C. external phone number mask

D. +E.164 alternate number mask

E. enterprise alternate number mask

An administrator is configuring a cluster for ILS and wants to limit the amount of entries that Cisco UCM will write to the database for data that is learned through ILS. Which service parameter is used to adjust this limit?

A. ILS Max Number of Learned Objects in Database

B. ILS Active Learned Object Upper Limit

C. Global Data Service Parameter Limit

D. Imported Dial Plan Replication Database Object Lower Limit

What is the relationship between partition, time schedule, and time period in Time-of-Day routing in Cisco UCM?

A. A partition can have multiple time schedules assigned. A time schedule contains one or more time periods.

B. A partition can have one time schedule assigned. A time schedule contains one or more time periods.

C. A partition can have multiple time schedules assigned. A time schedule contains only one time period.

D. A partition can have one time schedule assigned. A time schedule contains only one time period.

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.

What are the elements for Device Mobility configuration?

A. physical location, device pool, and Device Mobility group

B. device pool, Device Mobility group, and region

C. physical location, Device Mobility group, and region

D. device pool, Device Mobility group, and Cisco IP phone

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.