Introduction-to-Voice_over_Internet_Protocol.ppt

Internet Telephony Basics

1. 1
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IP Telephony
IP Internetwork
•IP is connectionless.
•IP provides multiple paths from source to
destination.

2. 2
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IP Telephony
Major VoIP Protocols

3. 3
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IP Telephony
VoIP Protocols and the OSI Model

4. 4
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IP Telephony
Bandwidth Implications vs Codec

5. 5
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IP Telephony
Sending Snap Shots
Required bandwidth is proportional to the bit rate.
Faster bit rate requires more Bandwidth.

6. 6
© 2005 Cisco Systems, Inc. All rights reserved.
Cisco Public
IP Telephony
Live video Streaming : If Required
Band width = Frame Size * Frames/Second * Cameras