Cisco Voice over IP Exam (CVOICE 642-432)

This exam consists of 55 to 65 questions and must be completed in 90 minutes. The listed topics are general guidelines for the type of content that is likely to appear on the exam. However, Cisco states that there may be questions on other relevant or related topics on the exam.

I. Voice over IP Technologies

1. Describe the similarities and differences between PSTN and VoIP including call transport, call signaling, and bandwidth requirements
2. Describe the technologies used in Voice over IP and how they differ from PSTN technologies
3. Identify PSTN characteristics, transport
4. Explain TDM and statistical MUX as it relates to telephony
5. Identify VoIP characteristics, transport
6. Compare operation of PSTN call signaling to VoIP call signaling

1. Configure a router so that a basic IP telephony call can be completed
2. Configure dial-peer settings for VoIP or POTs
3. Configure POTs ports (FXS and FXO)
4. Configure E&M
5. Explain default dial-peer
6. Explain matching inbound/outbound dial peers
7. Configure hunt groups
8. Explain digit collection, consumptions, and manipulations
9. Configure gateway/gatekeeper
10. Configure call signaling

1. Integrate a basic IP telephony network into an existing PBX network
2. Explain port requirements for connection to a PBX
3. Explain signaling requirements for connection to a PBX
4. Choose correct connection type between PBX and VoIP networks

1. Describe the basic operation and components involved in an IP telephony call
2. Explain RTP, RTCP, CRTP
3. Explain H323
4. Explain MGCP
5. Explain SIP
6. Explain E&M
7. Describe the process of analog to digital conversion
8. Describe the process of compounding and compressing
9. Explain the process of packetization (frames, codec types)
10. Choose the appropriate codec for a given situation
11. Explain the function, operation, and purpose of call-legs
12. Explain voice quality considerations
13. Explain QoS

V. Integrating Voice over IP into the PSTN

1. Successfully connect a basic Voice over IP network into the PSTN
2. Describe digit manipulation
3. Explain E164 addressing