Testinside cisco CCVP 642-436

Cisco Voice over IP (CVOICE) : 642-436 Exam

642-436 CVOICE
Cisco Voice over IP

Exam Number: 642-436
Associated Certifications: CCVP
Duration: 75 minutes (60 – 70 questions)
Available Languages: English
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Exam Description Exam Topics Recommended Training Additional Resources
Exam Description
The 642-436 CVOICE Cisco Voice over IP is the exam associated with the CCVP certification. This exam tests a candidate’s knowledge of the foundational elements of VOIP calls, and the description of dial plans, and the implementation of gateways, gatekeepers and IP-IP gateways. Candidates can prepare for this exam by taking the CVOICE Cisco Voice over IP course.

Exam Topics
The following topics are general guidelines for the content likely to be included on the Remote Access exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes, the guidelines below may change at any time without notice.

Describe the components of a gateway
Describe the function of gateways
Describe DSP functionality
Describe the different types of voice ports and their usage
Describe dial peer types
Describe codecs and codec complexity

Describe a dial plan
Describe a numbering plan
Describe digit manipulation
Describe path selection
Describe calling privileges
Describe call coverage

Describe the basic operation and components involved in a VoIP call
Describe VoIP call flow
Describe RTP, RTCP, cRTP, and sRTP
Describe H.323
Describe MGCP
Describe SCCP
Describe SIP
Identify the appropriate gateway signaling protocol for a given situation
Describe voice quality considerations
Choose the appropriate codec for a given situation

Implement a gateway
Describe the gateway call routing process
Configure analog voice ports
Configure digital voice ports
Describe considerations for PBX integration
Configure dial-peers
Configure hunt groups and trunk groups
Configure digit manipulation
Configure calling privileges
Verify dial-plan implementation
Implement fax and modem support on a gateway
Configure a gateway to provide DTMF support

Describe the function and interoperation of gatekeepers within an IP Communications network
Describe the function and types of gatekeepers
Describe the interoperation of devices with a gatekeeper
Describe gatekeeper signaling
Describe Dynamic Zone Prefix Registration with a gatekeeper
Describe gatekeeper redundancy

Implement a gatekeeper
Configure devices to register with a gatekeeper
Configure gatekeeper to provide dial-plan resolution
Configure gatekeeper to provide call admission control
Verify gatekeeper operation

Implement an IP-to-IP gateway
Describe the IP-to-IP gateway features and functionality
Configure gatekeeper to support an IP-to-IP gateway
Configure IP-to-IP gateway to provide address hiding
Configure IP-to-IP gateway to provide protocol and media interworking
Configure IP-to-IP gateway to provide call admission control
Verify IP-to-IP gateway implementations

“Cisco Voice over IP (CVOICE)”, also known as 642-436 exam, is a Cisco certification.
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QUESTION 21:
You have set up a complex dial plan using translation rules. The following translation
rule has been configured. What output would correspond to the test translation-rule

command?
translation-rule 1
rule 0 ^0.. 215550210
rule 1 ^1.. 215550211
rule 2 ^2.. 215550212
rule 3 ^3.. 215550213
rule 4 ^4.. 215550214
rule 5 ^5.. 215550215
rule 6 ^6.. 215550216
rule 7 ^7.. 215550217
rule 8 ^8.. 215550218
rule 9 ^9.. 215550210
A. test translation-rule 1 555
The replaced number: 55521555021
B. test translation-rule 1 617
The replaced number: 61721555021
C. test translation-rule 1 910
The replaced number: 21555021910
D. test translation-rule 1 512
The replaced number: 21555021512
Answer: D
QUESTION 22:
A customer wants to roll out IP telephony to the regional office. They are currently using
the G.711 codec at headquarters. Which codec will support voice activity detection and
comfort noise generation?
A. G.723.1
B. G.726
C. G.711
D. G.729B
Answer: D
QUESTION 23:
Which three services are supported by CUBE when supporting H323-to-SIP calls?
(Choose three.)
A. codec transparent support
B. media flow-through
C. Transport Layer Security
D. H.261, H.263, and H.264 video codecs

E. SIP cause codes
F. media flow-around
Answer: A,B,C

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