Patton electronic SmartNode 4110 Series ユーザーズマニュアル

PSTN profile configuration task list

SmartWare Software Configuration Guide 

Procedure: Create a PSTN Profile and enter the PSTN profile configuration mode

Mode: Configure

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 

.

Figure 9. Echo Cancellation

Procedure: Disable echo cancellation.

Mode: Profile PSTN

The output gain determines the voice output volume gain towards PSTN ports as shown in 

Figure 10. Applying output gain

Procedure: Configure voice output gain.

node(cfg)#profile pstn name 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

Disable echo canceller (Default: Enabled)

Echo

Echo canceller

Node

Node

Context CS

“switch”

PSTN interface

Outgoing voice is amplified by

“output gain”

voice volume: 10 dB

PSTN

Profile

B