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Cisco 300-815 exam, also known as Implementing Cisco Advanced Call Control and Mobility Services, is designed to test the candidates' skills and knowledge required to implement and troubleshoot advanced call control and mobility services. Implementing Cisco Advanced Call Control and Mobility Services certification exam is a part of the Cisco Certified Specialist - Collaboration Core certification track and is intended for network administrators, engineers, and technicians who work with Cisco Collaboration technologies.
NEW QUESTION # 126
What is first preference condition matched in a SIP-enabled incoming dial peer?
- A. incoming called-number
- B. target carrier-id
- C. incoming uri
- D. answer-address
Answer: C
Explanation:
https://www.cisco.com/c/en/us/support/docs/voice/ip-telephony-voice-over-ip-voip/211306-In- Depth--of-Cisco-IOS-and-IO.html#anc8
NEW QUESTION # 127
Which two configuration parameters are prerequisites to set Native Call Queuing on Cisco Unified Communications Manager? (Choose two.)
- A. The maximum number of callers allowed in queue must be 10.
- B. A unicast music on hold audio source must be configured.
- C. Cisco RIS data collector service must be running on the same server as the Cisco CallManager service.
- D. Cisco IP Voice Media Streaming Service must be activated on at least one node in the cluster.
- E. The phone button template must have the Queue Status Softkey configured.
Answer: C,D
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/12_0_1/systemConfig/ cucm_b_system-configuration-guide-1201/cucm_b_system-configuration-guide- 1201_chapter_01001101.html#CUCM_RF_C960BC9A_00
NEW QUESTION # 128
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.729br8
- B. G.711 U-law
- C. G.711 A-law
- D. G.729r8
Answer: D
NEW QUESTION # 129
Refer to the exhibit.
Refer to the exhibit. An engineer is trying to set up a new deployment using the SIP provider with TCP for signaling. After troubleshooting, the customer notices that the matching incoming dial peer and outgoing dial peer did not generate the INVITE to the SIP provider. Why is the call failing?
- A. The ITSP is not sending the ACK.
- B. The ITSP is not answering the SYN.
- C. The ITSP is sending CLOSE state.
- D. The ITSP is sending FIN.
Answer: B
NEW QUESTION # 130
Which three CLI commands are used when configuring H.323 call survivability for all calls?
(Choose three.)
- A. call preserve
- B. telephony-service
- C. voice service voip
- D. call-router h323-annexg
- E. h323
- F. transfer-system
Answer: A,C,E
NEW QUESTION # 131
Users in a small location report that audio calls work Tine, but only one video call works before the next one gets a busy signal. Three video conference rooms were recently installed by a third party. The audio and video devices are Cisco endpoints. The site uses video and audio calls, and a network investigation does not show saturation on the link The site is configured with QoS and CoS. All devices are registered on the headquarters Cisco UCM duster. What is the cause of this problem?
- A. The pipe or link configuration for video is set to only one device.
- B. The location setting for video is too low.
- C. The zone settings for video are too low.
- D. The subzone setting for video is too low.
Answer: A
NEW QUESTION # 132
Refer to the exhibit. This message is sent to the device being placed on hold for the Music On Hold audio setup. The held party reports receiving dead air rather than music when the call was put on hold. The software Music On Hold server on Cisco UCM is used in this scenario. Assume that the audio leg between the Music On Hold server and the held device uses G.711, and the relevant region relationship is configured for 64 kbps. What is the cause of the issue?
- A. The bandwidth configured for this region relationship is too low and must be increased to 96 kbps or higher.
- B. Cisco UCM is sending a=inactive to the held device.
- C. The device that is placed on hold does not support G.711, and a transcoder could not be allocated for the call.
- D. The Music On Hold server does not support G.711 and a transcoder could not be allocated for the call.
Answer: B
NEW QUESTION # 133
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?
- A. c= line of SDP content
- B. Allow: header if the 200 OK response
- C. Contact: header of the 200 OK response
- D. o= line of SDP content
Answer: A
Explanation:
c= attributes contained the connection media information. It contains the IP address that will be used for RTP.
https://tools.ietf.org/html/rfc4566#section-5.7
NEW QUESTION # 134
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. Called Party Transformation Mask of + 14085554XXX
- B. Called Party Transformation Mask of +1408555[35)XXX
- C. Calling Party Transformation Mask of +1408555XXXX
- D. Calling Party Transformation Mask of +14085554XXX
Answer: A
NEW QUESTION # 135
An engineer is implementing survivability for a collaboration environment. The environment is utilizing a centralized Cisco UCM at the headquarters and Cisco IOS-XE gateways in the remote branches. Which action must the engineer take to enable both shared lines and B-ACD for SIP branch phones during a WAN outage?
- A. Configure mode esrst under voice service voip configuration mode.
- B. Configure mode srst under telephony-service configuration mode.
- C. Configure mode esrst under telephony-service configuration mode.
- D. Configure mode esrst under voice register global configuration mode.
Answer: D
NEW QUESTION # 136
Drag and Drop Question
Drag and drop the steps from the left into the order to provision mobility users through LDAP on the right. Not all options are used.
Answer:
Explanation:
NEW QUESTION # 137
Refer to the exhibit. An engineer is troubleshooting an issue where inbound Calls are failing after they 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 contact-passig
- B. rel1xx require "100rel"
- C. no update-callerId
- D. no midcall-signaling passthru
Answer: B
NEW QUESTION # 138
Which action is correct with respect to toll fraud prevention configuration in the Cisco Unified Communications Manager Express?
- A. Configure Direct Inward Dial for Incoming ISDN Calls with overlap dialing.
- B. Enable Secondary Dial tone on Analog and Digital FXO Ports.
- C. Configure the command no ip address trusted authenticate under "voice service voip".
- D. Configure IP Address Trusted Authentication for Incoming VoIP Calls.
Answer: D
Explanation:
Section: CME/SRST Gateway Technologies
Explanation/Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/admin/configuration/manual/ cmeadm/cmetoll.html#concept_ECC4F4E7ED0F45C594B703EEF34762F2
NEW QUESTION # 139
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?
- A. Create the end user and associate it to the device profile.
- B. Assign the extension as a mobile extension.
- C. Subscribe the phone to the Cisco Extension Mobility service.
- D. Create the default device profiles for all phone models that are used.
Answer: C
Explanation:
Section: Mobility
Explanation/Reference:
NEW QUESTION # 140
Users report slrange behaviors when Ihey call external numbers from the company phone system. The company is using Cisco 8865 phones with Cisco UCM connected to a gateway with two T1 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 verbose
- B. debug mgcp media tracelevel moderate
- C. debug mgcp media tracelevel critical
- D. debug mgcp media tracelevel critical all
Answer: B
NEW QUESTION # 141
Which description of RTP timestamps or sequence numbers is true?
- A. The timestamp is used to place the incoming audio and video packets in the correct timing order (playout delay compensation).
- B. Sequence numbers increase by four for each RTP packet transmitted.
- C. Timestamps increase by the time "carrying" by a packet.
- D. The sequence number is used to detect losses.
Answer: A
Explanation:
Reference:
https://www.cs.columbia.edu/~hgs/rtp/faq.html
NEW QUESTION # 142
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. Create a called party transformation pattern that matches the desired directory number and add a mask to modify the calling number
- B. Update the SIP profile on the SIP trunk by checking "enable external presentation name and number"
- C. Create a calling party transformation patter that matches the desired directory number and add a mask to modify the calling number
- D. Change the calling line ID presentation on the SIP trunk to allow.
- E. Add a calling party transformation CSS to the SIP trunk.
Answer: C,E
NEW QUESTION # 143
Refer to the exhibit. A company is using Microsoft Teams with Cisco Unified Border Element integration, but the administrator sees a one-way audio issue with Microsoft Teams. The administrator must modify the SIP profile to send the proper information on the SDP for IP address for media to match the internal and external interface. Which set of commands resolves the issue?
- A. voice class sip-profiles 1
request INVITE sdp-header Connection add "2\.76\.1" "2.78.1" - B. voice class sip-profiles 1
request INVITE sdp-header Connection-Info modify "2\.76\.1" "2.78.1" - C. voice class sip-profiles 1
request INVITE sdp-header Session-Owner modify "27\.0\.0" "27.3.0" - D. voice class sip-profiles 1
request INVITE sdp-header Audio-Attribute modify "2\.76\.1" "2.71.1"
Answer: B
NEW QUESTION # 144
A company was looking at the IT charges and saw many long-distance and international calls primarily to sites in North America and around the world. The administrator wants to optimize the PSTN expense. Which dial plan configuration reduces PSTN connectivity charges by using the IP network to bring the egress point to the PSTN as close as possible to the called number?
- A. dial rules
- B. client matter codes
- C. translation patterns
- D. tail end hop off
Answer: D
NEW QUESTION # 145
ABC company has decided to implement hunt groups to help distribute calls between members.
In order to implement this, administrator must configure hunt list, hunt group, and line groups on Cisco UCM. Which distribution algorithms should the administrator implement?
- A. Sequantial, Circular, Broadcast
- B. Top Down, Round Robin, Broadcast
- C. Top Down, Round Robin, Distribute
- D. Top Down, Circular, Broadcast
Answer: D
NEW QUESTION # 146
A new Cisco UCM deployment is configured, and now the customer requires a set of 10 DNSs to park the calls starting with 8. The users must use the softkey to park the call. Which configuration must be performed to achieve this requirement?
- A.
- B.
- C.
- D.
Answer: A
NEW QUESTION # 147
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