CCNP certification

642-436 CVOICE
Cisco Voice over IP
Exam Number: 642-436
Associated Certifications: CCVP
Duration: 75 minutes (60 – 70 questions)
Available Languages: English and Japanese
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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

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