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Linksys/Cisco Proprietary – All Content Subject To Change – Not a Warranty
26
Preparing Your Network for LVS 9000
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Ethernet Bandwidth Budget for Off-Net VoIP Calling
568 kbps
426 kbps
284 kbps
142 kbps
71 kbps
G.726-24
440 kbps
330 kbps
220 kbps
110 kbps
55 kbps
G.729
504 kbps
378 kbps
252 kbps
126 kbps
63 kbps
G.726-16
632 kbps
474 kbps
316 kbps
158 kbps
79 kbps
G.726-32
696 kbps
522 kbps
348 kbps
174 kbps
87 kbps
G.726-40
880 kbps
660 kbps
440 Mbps
220 kbps
110 kbps
G.711
8 Calls
6 Calls
4 Calls
2 Calls
Approximate Bandwidth Budget
for Each Side of Conversation
Codec
Assumptions:
- Bandwidth Calculated with No Silence Suppression
- Two 20 Millisecond Frame Samples
- Propagated over an Ethernet WAN Link.
- Note: The use of Silence Suppression can reduce the average bandwidth budget by over 30%
Reference Web Sites:
VoIP Line Bandwidth Calculator: http://www.erlang.com/calculator/lipb/
VoIP Bandwidth Calculator: http://www.packetizer.com/voip/diagnostics/bandcalc.html