LV switch IPPBX8000, User Manual

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LvSwitch IPPBX 8000 Manual
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Items Description
Echo Cancellation
Select echo cancellation, option: STDEC, Std-EC with ECPD, and DFEC
Echo Cancellation
Length (ms)
Set echo cancellation length, default value: 64ms
Mute Compression
Enable mute compression can save network bandwidth
Comfort Noise
Generator
CNG is synthetic background noise used in radio and wireless communications
to fill the artificial silence in a transmission resulting from voice activity
detection or from the audio clarity of modern digital lines
Voice Volume
Telephone voice volume size of receiver. Range is from-14dB to 6db; default
value is 0dB.
Input Gain
Telephone voice volume size of caller. Range is from -14dB to 6dB; default
value is 0dB.
DTMF Volume
Sound level of the user’s keys. Range is from -63dB to 0dB.
Minimum Delay of
Dynamic Jitter Buffer
(ms)
Range is from 0ms to 280ms, default value is 150ms.
Maximum Fax Rate
Options: 2400bps, 4800bps, 7200 bps, 9600 bps, and 12000 bps, 14400 bps.
Default value is 14400bps
Fax Redundancy
Set the number of redundant packets, providing four types 0,1,2,3.
Error Correction
Type
Set error correction type of T.38.
Max Packet Value
Set maximum packet value of T.38 fax; range is from 200 to 600 bytes, default
value is 400 bytes.
Busy Tone Detection Provide BQD and FFT, default use FFT
Times of Busy Tone
Detection
Option: 1, 2, 3, default value is 3
Figure 6-123 DSP Setting – Basic Setting