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NEW QUESTION # 35
Refer to the exhibit.
An engineer is troubleshooting an issue where inbound calls to Cisco UCM with early media fail to establish. While investigating the issue, the engineer finds that Cisco UCM is set to require a PRACK. but the Cisco Unified Border Element is not sending it. Which command is causing this issue?
- A. voice-class sip early-media update block
- B. voice-class sip conn-reuse
- C. voice-class midcall-signaling block
- D. voice-class sip rel1xx disable
Answer: D
NEW QUESTION # 36
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.
Answer: D
Explanation:
Section: Signaling and Media Protocols
NEW QUESTION # 37
Which description of RTP timestamps or sequence numbers is true?
- A. Sequence numbers increase by four for each RTP packet transmitted.
- B. The timestamp is used to place the incoming audio and video packets in the correct timing order (playout delay compensation).
- C. Timestamps increase by the time "carrying" by a packet.
- D. The sequence number is used to detect losses.
Answer: B
NEW QUESTION # 38
CollabCorp is a global company with two clusters, emea.collab corp and apac.collab.corp. URI dialing is implemented and working in each cluster. The company configured routing between clusters to make inter-cluster calls via URI. but this is not working as expected. Which two configuration elements should be checked to resolve this issue? (Choose two.)
- A. SIP trunk
- B. SIP route pattern
- C. calling search space and partition
- D. intercluster trunk
- E. directory URI partition
Answer: A,B
NEW QUESTION # 39
Which action is correct with respect to toll fraud prevention configuration in the Cisco Unified Communications Manager Express?
- A. Configure the command no ip address trusted authenticate under "voice service voip".
- B. Configure Direct Inward Dial for Incoming ISDN Calls with overlap dialing.
- C. Configure IP Address Trusted Authentication for Incoming VoIP Calls.
- D. Enable Secondary Dial tone on Analog and Digital FXO Ports.
Answer: C
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 # 40
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. Set up translation-profile on the incoming dial peer to match incoming traffic.
- B. Fix the voice translation-rule to match specifically number "222333444" and change it to "444333222".
- C. Create specific matching for "222333444" on the incoming dial peer.
- D. Change the destination-pattern on the outgoing dial peer to match "444333222".
Answer: A
NEW QUESTION # 41
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?
- A. The negotiated RTP port is outside of the range described by RFC, so inband DTMFs do not work.
- B. No DTMF is negotiated.
- C. There is SIP Delayed Offer. DTMF is supported only in Early Offer.
- D. The rtpmap:0 value for the negotiated codec is marking DTMF as inactive.
Answer: B
NEW QUESTION # 42
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. Contact: header of the 200 OK response
- C. o= line of SDP content
- D. Allow: header if the 200 OK response
Answer: C
NEW QUESTION # 43
Refer to the exhibit.
How many maximum hops can an ILS updarte traverse?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION # 44
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. top down
- B. broadcast
- C. circular
- D. longest idle time
Answer: A
NEW QUESTION # 45
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?
- A. debug H.323 messages
- B. debug H.224 asn1
- C. debug H.323 asn 1
- D. debug H.225 media
- E. debug H.246 asn 1
Answer: B
NEW QUESTION # 46
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. called party transform mask
- B. +E.164 alternate number mask
- C. AAR destination mask
- D. enterrise alternate number mask
- E. external phone number mask
Answer: C,E
Explanation:
Reference:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/dialplan.html
NEW QUESTION # 47
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.)
- A. As soon as Phone_A presses the Transfer button for the first time, Phone_B hears the MOH and the MOH audio is chosen from Phone_A User Hold MOH Audio Source settings.
- B. As soon as Phone_A presses the Transfer button for the first time, Phone_B hears the MOH and the MOH audio is chosen from Phone_B User Hold MOH Audio Source settings.
- C. Phone_B sends a SIP-REFER message to the Cisco Unified CM with Phone_C information in the Refer-To section.
- D. Phone_A sends a SIP-REFER message to the Cisco Unified Communications Manager with Phone_C information in the Refer-To section.
- E. As soon as Phone_A presses the Transfer button for the first time, Phone_B hears the music on hold and the MOH audio is chosen from Phone_A Network Hold MOH Audio Source settings.
Answer: D,E
NEW QUESTION # 48
Refer to the exhibit.
An engineer is troubleshooting an issue where inbound calls to Cisco UCM with early media fail to establish. While investigating the issue, the engineer finds that Cisco UCM is set to require a PRACK. but the Cisco Unified Border Element is not sending it. Which command is causing this issue?
- A. voice-class sip early-media update block
- B. voice-class sip conn-reuse
- C. voice-class midcall-signaling block
- D. voice-class sip rel1xx disable
Answer: D
NEW QUESTION # 49
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. phone class of service issue
- B. codec mismatch
- C. missing Call Admission Control
- D. ptime mismatch
Answer: C
NEW QUESTION # 50
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?
- A. sequential
- B. parallel
- C. peer
- D. call-blast
Answer: C
NEW QUESTION # 51 
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\([2-9]..[2-9]......$\)/ /\1/
- B. rule 1 /^/+\([^1].*\)/ /011\1/
- C. rule 1 /^\([2-9]..[2-9]......$\)/ /\1/
- D. rule 1 /^\+1\([2-9]..[2-9]......$\)/ /\0/
Answer: A
Explanation:
Section: Cisco Unified Border Element
Explanation/Reference:
NEW QUESTION # 52
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.
Answer: D
NEW QUESTION # 53
Which two descriptions of the Standard Local Route Group deployment are true? (Choose two.)
- A. can be associated under the route group
- B. can be associated only under the route list
- C. can be assigned directly to the route pattern
- D. chooses the route group that is configured under the device pool of the called-party device
- E. chooses the route group that is configured under the device pool of the calling-party device
Answer: B,E
NEW QUESTION # 54
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