Silence Compression On Full Duplex Links; Figure 51 One Call On A Full Duplex Link Without Silence Compression - Nortel VoIP Gateway Configuration Manual

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Silence compression on Full Duplex Links

Silence compression on Full Duplex Links
On full duplex links, the transmit path and the receive path are separate channels, with bandwidths
usually quoted in terms of individual channels. The following figure shows the peak bandwidth
requirements for one call on a full-duplex link without silence compression. Voice packets are
transmitted, even when a speaker is silent. Therefore, the peak bandwidth and the average
bandwidth used equals the full transmission rate for both the transmit and the receive channel.

Figure 51 One call on a full duplex link without silence compression

Tx
Tx
Fred here.
Fred Here.
Rx Rx
Conversation
Bandwidth Used
Bandwidth used
P0606298 02
Hello Fred. This is Susan.
Hello Fred. This is Susan.
Voice frames sent even when speaker is silent
Voice frames sent even
Do you have a minute?
Do you have a minute?
Hi!
Hi!
Channel/Link max
Channel Max
Channel/Link max
Channel Max
Sure!
Sure!
Time
Time ->
Time
Time ->