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Coder Parameters
Coder
Selected
Coder
Max
bandwidth
(coder)
Field Name
Advanced Features
Silence
Compression
Echo
Cancellation
Forward
Error
Correction
Multi-Tech Systems, Inc.
Voice/Fax Parameter Definitions (cont'd)
Manual or
Determines whether selection of coder is manual or automatic.
Auto-
When Automatic is selected, the local and remote voice channels
matic
will negotiate the voice coder to be used by selecting the highest
bandwidth coder supported by both sides without exceeding the
Max Bandwidth setting. G.723, G.729, or G.711 are negotiated.
In general, this should be set to Automatic.
G.711 a/u
Select from a range of coders with specific bandwidths. The higher
law 64
the bps rate, the more bandwidth is used. The channel that you are
kbps;
calling must have the same voice coder selected.
G.726, @
16/24/32
Default = G.723.1 @ 6.3 kbps, as required for H.323. Here 64K of
/40 kbps;
digital voice are compressed to 6.3K, allowing several simultaneous
G.727, @
conversations over the same bandwidth that would otherwise carry
nine bps
only one.
rates;
G.723.1 @
To make selections from the Selected Coder drop-down list, the
5.3 kbps,
Manual option must be enabled.
6.3 kbps;
G.729,
8kbps;
Net Coder
@
6.4, 7.2, 8,
8.8, 9.6
kbps
11 – 128
Not applicable for TalkAnytime units.
kbps
Voice/Fax Parameter Definitions (cont'd)
Values
Description
--
Not applicable for TalkAnytime units.
Y/N
Determines whether echo cancellation is enabled (checked) for this voice
channel.
Echo Cancellation removes echo and improves sound quality. Default =
on.
Y/N
Not applicable for TalkAnytime units.
TalkAnyTime User Guide
Chapter 5: Technical Configuration
76
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