300-815 Exam Questions and Answers | Exam-Dumps (Page: 3)

QUESTION: 11

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

Analysis Manager > Inventory > Trace File Repositories
System > Tools > Trace and Log Central
Voice/Video > Session Trace Log View > Real Time Data
Voice/Video > Session Trace Log View > Open From Local Disk

Answer(s): C

Reference:

https://www.cisco.com/c/en/us/support/docs/unified-communications/unified- communications-manager-callmanager/213583-procedure-to-analyse-call-flow-of-sip-ca.html

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QUESTION: 12

Which description of RTP timestamps or sequence numbers is true?

The sequence number is used to detect losses.
Timestamps increase by the time “carrying” by a packet.
Sequence numbers increase by four for each RTP packet transmitted.
The timestamp is used to place the incoming audio and video packets in the correct timing order
(playoutdelay compensation).

Answer(s): D

Reference:

https://www.cs.columbia.edu/~hgs/rtp/faq.html

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QUESTION: 13

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?

CallManager traces
CTI Manager traces
Cisco IP Manager Assistant
Call logs

Answer(s): A

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Refer to the exhibit.

A user reports that when they call a specific phone number, no one answers the call, but when they call from a mobile phone, the call is answered. The engineer troubleshooting the issue is expecting the far-end gateway to cut through audio on the 183 Session Progress SIP message. Which SIP Profile configuration element is necessary for the Cisco Unified Communications Manager to send acknowledgement of provisional responses?

Allow Passthrough of Configured Line Device Caller Information must be enabled.
Accept Audio Codec Preferences in Received Offer must be set to On.
On the SIP Profile, the configuration parameter SIP Rel1XX Options must be set to Send PRACK for all 1xx Messages.
D. Early Offer for G Clear Calls must be enabled.

Answer(s): C

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QUESTION: 15

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.)

three-way conference
secure SIP lines
T.38 fax relay
transcoding
SIP trunk

Answer(s): A,C

Reference:

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cusrst/admin/sccp_sip_srst/configuration/guide/SCCP_and_SIP_SRST_Admin_Guide/srst_sip_isr4000.html

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Cisco® 300-815 Exam (page: 3)
Cisco® Implementing Advanced Call Control and Mobility Services (CLASSM)
Updated on: 25-Dec-2025

QUESTION: 11

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QUESTION: 12

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QUESTION: 13

QUESTION: 14

QUESTION: 15

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Cisco® 300-815 Exam (page: 3) Cisco® Implementing Advanced Call Control and Mobility Services (CLASSM) Updated on: 25-Dec-2025

QUESTION: 11

Reference:

QUESTION: 12

Reference:

QUESTION: 13

QUESTION: 14

QUESTION: 15

Reference:

Cisco® 300-815 Exam (page: 3)
Cisco® Implementing Advanced Call Control and Mobility Services (CLASSM)
Updated on: 25-Dec-2025