642-432 CVOICE
Cisco Voice Over IP Exam
Associated Certifications: CCVP, Cisco IP Communications Support Specialist, and Cisco Rich Media Communications Specialist
Exam Description
The Cisco Voice over IP 642-432 CVOICE exam is associated with the CCVP, Cisco IP Communication Support Specialist, and Cisco Rich Media Communications Specialist certifications. Candidates can prepare for this exam by taking the Cisco Voice Over IP (CVOICE) course. This exam assesses a candidate’s knowledge of how to implement and support data and voice integration solutions at the network-access level. Topics covered include basic IP Telephony operation, router configuration, support, troubleshooting, and integration with an existing PSTN network.
Exam Topics
The following information provides general guidelines for the content likely to be included on the 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 similarities and differences between PSTN and VoIP including call transport, call signalling and bandwidth requirements
* Identify PSTN characteristics, transport
* Explain TDM and statistical multiplexing as it relates to telephony
* Identify VOIP characteristics, transport
* Compare operation of PSTN call signalling to VoIP call signalling
Configure a router so that a basic IP Telephony call can be completed
* Configure dial-peer settings for VoIP or POTs
* Configure POTs ports (FXS and FXO)
* Configure E&M
* Explain default dial-peer
* Explain matching inbound/outbound dial peers
* Configure hunt groups
* Explain digit collection, consumptions and manipulations
* Configure gateway/gatekeeper
* Configure call signalling
Troubleshoot a basic IP telephony configuration
* Use show/debug commands to troubleshoot invalid dial-peer configurations
* Use show/debug commands to troubleshoot invalid port configuration and operation
* Use show/debug commands to troubleshoot invalid signalling configuration
* Use show/debug commands to troubleshoot invalid hunt-group configurations
* Use show/debug commands to troubleshoot invalid digit manipulation
Successfully integrate a basic IP telephony network into the existing PSTN network
* Explain port requirements for connection to a PBX
* Explain signalling requirements for connection to a PBX
* Choose correct connection type between PBX and VoIP networks
* Compare and contrast a traditional dial plan to a VoIP Dial Plan
* Identify telephony infrastructure terms (ie. LEC, CLEC, RBOC, ILEC, IXC)
Converse with traditional TDM support personnel using their terminology
* Identify TDM signaling
* Identify port and line types
* Identify addressing signalling
Describe the basic operation and components involved in a VoIP call
* Explain RTP, RTCP, cRTP
* Explain H323
* Explain MGCP
* Explain SIP
* Explain E&M
* Describe the process of analog to digital conversion
* Describe the process of compounding and compressing
* Explain the process of packetization (frames, codec types)
* Choose the appropriate codec for a given situation
* Explain the function/operation/purpose of call-legs
* Explain voice quality considerations
* Explain the purpose and value of QoS
Successfully connect a basic VoIP net to the PSTN
* Choose the correct gateway connection to the PSTN
* Determine proper signalling options
* Describe digit manipulation
* Explain E164 addressing
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