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300-815 Questions and Answers

Question # 4

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 1

rule 1 /^4...$/2404\0/ type any national plan any Isdn

B.

voice translation-rule 1 rule 1 // // type any subscriber plan any isdn

C.

voice translation-rule 1 rule 1 /^4...S/ /9132404 0/ type any subscriber plan any Isdn

D.

voice translation-rule 1

rule 1 /^4...V /2404\0/ type any subscriber plan any isdn

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Question # 5

Users are reporting that several inter-site calls are failing, and the message "not enough bandwidth" is showing on the display. Voice traffic between locations goes through corporate WAN. and Call Admission Control is enabled to limit the number of calls between sites. How is the issue solved without increasing bandwidth utilization on the WAN links?

A.

Disable Call Admission Control and let the calls use the amount of bandwidth they require.

B.

Configure Call Queuing so that the user waits until there is bandwidth available

C.

Configure AAR to reroute calls that are denied by Call Admission Control through the PSTN.

D.

Reroute all calls through the PSTN and avoid using WAN.

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Question # 6

Due to a shortage of physical interfaces on a device the administrator requires that a loopback for RTP is used. Which command is required when using a loopback interface for RTP?

A.

voice-class sip resources priority mode passthrough

B.

voice-class sip bind control source-interface Loopback0

C.

voice-class sip early-offer forced.

D.

voice-class sip bind media source-interface Loopback0

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Question # 7

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

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Question # 8

Refer to the exhibit.

Calls incoming from the provider are not working through newly set up Cisco Unified Border Element. Provider engineers get the 404 Not Found SIP message. Incoming calls are coming from the provider with called number “222333444” and Cisco Unified Communications Manager is expecting the called number to be delivered as “444333222”. The administrator already verified that the IP address of the Cisco Unified CM is set up correctly and there are no dial peers configured other than those shown in the exhibit. Which action must the administrator take to fix the issue?

A.

Change the destination-pattern on the outgoing dial peer to match “444333222”.

B.

Set up translation-profile on the incoming dial peer to match incoming traffic.

C.

Create specific matching for “222333444” on the incoming dial peer.

D.

Fix the voice translation-rule to match specifically number “222333444” and change it to “444333222”.

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Question # 9

Refer to the exhibit.

Which change to the translation rule is needed to strip only the leading 9 from the digit string 9123548?

A.

rule 1 /^9\(.*\)/A1/

B.

rulel /.*\(3548S\)/^1/

C.

rulel /^9\(\d*\)/^1/

D.

rule 1/^9123548/^1/

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Question # 10

An engineer is troubleshooting local ringback on a Cisco SIP gateway The gateway is not ignoring the SIP 180 response with SDP from the service provider, and the far end device is sending the 180 with SDP to play ringback from the IP address specified m the SDP Which configuration change must be made on the gateway to resolve the issue?

A.

Router(conf-voi-serv)# dlisable-early-media 180

B.

Router(conftg-sip-ua)# disable-early-media 180

C.

Router(con(-voi-serv)# no disable-early-media 180

D.

Router(config-sip-ua)# no disable-early-media 180

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Question # 11

Refer to the exhibit.

Outbound calls to the service provider cause intermittent errors due to a codec mismatch. The internal network sends early offer SDP that contains only G.711 A-law. The service provider reports that some destinations support only G.711 A-law while others support only iLBC. The service provider also allows only 20 active calls at a time Which configuration allows successful media negotiation for all calls using outbound dial peers 5002 and 5003?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Question # 12

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

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Question # 13

In Cisco Unified Communications Manager globalized call routing is implemented and must confirm that it is correctly implemented without making a call. Which tool do you use for verification?

A.

Dialed Number Analyzer

B.

Real-Time Monitoring Tool

C.

SDI trace

D.

SDL trace

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Question # 14

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?

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/

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Question # 15

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

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Question # 16

Refer to the exhibit.

An engineer configures Cisco Unified Border Element to connect the enterprise VoIP network with a SIP telephony provider. Calls are not working in either direction. What must be configured in the dial peer 1 to fix the issue?

A.

answer-address 555 ……..

B.

codec g729

C.

session-protocol sipv2

D.

incoming called number 555…….

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Question # 17

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).

A.

debug H.245 asn1

B.

debug H.323 message

C.

debug H.225 asn1

D.

debug H.225 media

E.

debug H.323 asn1

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