Version 6.6 263 Mediant 2000
User's Manual 21. Digital PSTN
Note: If the Trunk scroll bar displays all available trunks, the scroll bar buttons are
unavailable.
After you have selected a trunk, the following is displayed:
• The read-only 'Trunk ID' field displays the selected trunk number.
• The read-only ‘Trunk Configuration State’ displays the state of the trunk ('Active'
or 'Inactive').
• The displayed parameters pertain to the selected trunk only.
3. Click the Stop Trunk button (located at the bottom of the page) to take the trunk
out of service so that you can configure the currently grayed out (unavailable)
parameters. (Skip this step if you want to configure parameters that are available
when the trunk is active). The stopped trunk is indicated by the following:
• The ‘Trunk Configuration State’ field displays ‘Inactive’.
• The Stop Trunk button is replaced by the Apply Trunk Settings button.
When all trunks are stopped, the Apply to All Trunks button also appears.
• All the parameters are available and can be modified.
4. Configure the trunk parameters as required.
5. Click the Apply Trunk Settings button to apply the changes to the selected trunk (or
click Apply to All Trunks to apply the changes to all trunks); the Stop Trunk button
replaces Apply Trunk Settings and the ‘Trunk Configuration State’ displays 'Active'.
6. To save the changes to flash memory, see 'Saving Configuration' on page 396.
7. To reset the device, see 'Resetting the Device' on page 393.
21.2 TDM and Timing
This section describes the configuration of the TDM and clock timing parameters.
21.2.1 Configuring TDM Bus Settings
The TDM page allows you to configure the device's Time-Division Multiplexing (TDM) bus
settings. For a description of these parameters, see 'PSTN Parameters' on page 619.
 To configure the TDM Bus settings:
1. Open the TDM page (Configuration tab > VoIP menu > TDM > TDM Bus Settings).
Figure 21-3: TDM Bus Settings Page
2. Configure the parameters as required.
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