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Preparing Your Network for LVS 9000

•Ethernet Bandwidth Budget for Off-Net VoIP Calling

568 kbps426 kbps284 kbps142 kbps71 kbps
G.726-24
440 kbps330 kbps220 kbps110 kbps55 kbps
G.729
504 kbps378 kbps252 kbps126 kbps63 kbps
G.726-16
632 kbps474 kbps316 kbps158 kbps79 kbps
G.726-32
696 kbps522 kbps348 kbps174 kbps87 kbps
G.726-40
880 kbps660 kbps440 Mbps220 kbps110 kbps
G.711

8 Calls6 Calls4 Calls2 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