Cisco Voice over IP Exam (CVOICE 642-432)

IV. Call Operation and Components in Voice over IP

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

IV. Call Operation and Components in Voice over IP

1. Describe the basic operation and components involved in an IP telephony call

   Cisco Voice Systems
   Voice over IP (Supplement), Voice over IP Call Operations
   Voice over X

2. Explain RTP, RTCP, CRTP
   
   Voice over X
   Cisco Voice Systems
   Quality of Service III
   Managing Performance and QoS I: General Principles and Ingress Handling

3. Explain H323

   Voice over X, Signaling and Transport
   Cisco Voice Systems, H.323
   Voice over IP (Supplement)

4. Explain MGCP

   Voice over X, Media Gateway Control Protocol
   Cisco Voice Systems, MGCP
    

5. Explain SIP

   Voice over X, Session Initiation Protocol
   Cisco Voice Systems, What is SIP?
    

6. Explain E&M

   Voice over IP (Supplement), Dial Peers
   Voice over X
   Introduction to Telephony, Telephone Networks
   Cisco Voice Systems, E&M;
    

7. Describe the process of analog to digital conversion

   Voice over X
   Introduction to Telephony
   Voice over IP (Supplement)
    

8. Describe the process of compounding and compressing

   Voice over X
   Cisco Voice Systems
   Introduction to Telephony, Compression
    

9. Explain the process of packetization (frames, codec types)

   Voice over IP (Supplement), VoIP and POTS Dial Peer
   Voice over X
   Cisco Voice Systems, Packetization
   Introduction to Telephony, Packetizing Voice — a quick look
    

10. Choose the appropriate codec for a given situation

    Voice over IP (Supplement), VoIP and POTS Dial Peer
    Voice over X, Codecs
    Cisco Voice Systems, Codecs
     

11. Explain the function, operation, and purpose of call-legs

    Voice over IP (Supplement), Call Legs
    Voice over X, Configuring Dial Peers
    Cisco Voice Systems, The Dial Peer
     

12. Explain voice quality considerations

    Voice over X
    Cisco Voice Systems
    Introduction to Telephony, How to Measure Call Quality: MOS
     

13. Explain QoS

    Voice over X, The Role of QoS
    Cisco Voice Systems, Why QoS
    Managing Performance and QoS I: General Principles and Ingress Handling
    Managing Performance and QoS II: Other Means of IP QoS Control
    Quality of Service III