Configuring The Echo Canceller; Configuring Output Gain; Echo Cancellation; Applying Output Gain - Patton electronics SmartNode Series Software Configuration Manual

SmartWare Software Configuration Guide
Procedure: Create a PSTN Profile and enter the PSTN profile configuration mode
Mode: Configure
Step Command
1 node(cfg)#profile pstn name
2 node(pf-pstn)[name]#...
Configuring the echo canceller
Echoes are reflections of the transmitted signal that result from impedance mismatches in the hybrid (bi-direc-
tional 2-wire to 4-wire conversion) device, causing an echo on the wire. Echo cancellation provides near-end
echo compensation for this effect as shown in
Procedure: Disable echo cancellation.
Mode: Profile PSTN
Step
1 node(pf-pstn)[name]#no echo-canceller
Configuring output gain
The output gain determines the voice output volume gain towards PSTN ports as shown in
Procedure: Configure voice output gain.
PSTN profile configuration task list
Create a PSTN profile with name name and enter PSTN profile
configuration mode. The newly created profile contains default
values for all parameters.
If a profile with name name already exists, only the PSTN profile
configuration mode is entered.
Configuration steps as described in the chapters below
figure
Echo
Figure 9. Echo Cancellation
Command
Outgoing voice is amplified by
"output gain"
Figure 10. Applying output gain
48 • PSTN profile configuration
Purpose
9.
Node
Node
Echo canceller
Disable echo canceller (Default: Enabled)
voice volume: 10 dB
Context CS
"switch"
PSTN interface
Purpose
figure 10.
PSTN
Profile
B
594