Installation guide

System Configuration 135
Synapse Installation Guide
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 lines to the PSTN Gateway. Consult your Centrex line provider for the correct
code to enter.
Centrex lines operate in Line Appearance mode only.
 To enter Centrex line access codes:
Figure 147. Line Calibration Data and Configuration
1. In the navigation menu at left, click Device
Management, then Device Log.
2. Select the PSTN Gateway from the Device Log
drop-down list. The page shown in Figure 147 appears.
3. Enter the Line Access Code for each line. Do not enter a
code for a line that has been selected for Door Phone
Mode.
4. Click Save Configuration.
You can now connect the physical lines to the PSTN
Gateway.
The Door Phone Mode column is used for selecting
a line for a Trunk Port (FXO) door phone. See
“Configuring a Trunk Port (FXO) Door Phone” on
page 129.