Part III. Connecting via Gateways and Trunks
Exam topics covered in Part III:
• Describe the process of voice packetization
• Describe RTP and RTCP
• Describe the function of and differences between codecs
• Describe H.323, MGCP, SIP, and SCCP signaling protocols
• Describe the function and application of a dial plan
• Describe the function and application of voice Gateways
• Describe the function and application of voice ports in a Gateway
• Describe the function and operation of call-legs
• Describe and configure voice dial peers
• Describe the differences between PSTN and Internet Telephony Service Provider circuits
• Identify the factors that ...
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