Syn248 Installation and Configuration Guide Back to Contents
System Configuration 80
Advanced PSTN Settings
The Advanced PSTN Settings enable you to configure and troubleshoot the PSTN lines
connected to the Gateway.
The Advanced PSTN Settings include the following items:
Line Calibration Data (see “Resolving Audio Echoes” on page 99)
Line Configuration (described below)
Advanced Configuration (see “Resolving Audio Echoes” on page 99).
Line Calibration Configuration
If your system uses Centrex lines, you must enter an outbound line prefix or code in order
for line calibration to take place. You should perform this procedure before connecting
the telephone lines to the Gateway. Consult your Centrex line provider for the correct
code to enter.
To enter Centrex line access codes:
1. In the navigation menu at left, click Device Management, then Advanced PSTN
Settings.
2. Select the Gateway from the drop-down list. The Advanced PSTN Settings page
expands to show Line Calibration Data, Line Configuration (shown below), and
Advanced Configuration.
3. Under Line Configuration, enter the Line Access Code for each line.
4. Click .
You can now connect the telephone lines to the Gateway LINE ports. See
“Connecting the Gateway” on page 17.
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