PBX Tie Trunk Application Adjustments
Many PBXs have selectable input/output level combinations for Tie Trunks, e.g., +7/-16, -16/+7 and 0/0 dB. The 0/0 dB option should be selected. Also, PAD (2 dB) Switching Option, if available, should be selected.
Summary
- Connect a Voice Network Analyzer (VNA) in series with the telephone set at each end of the test setup.
- Establish a switch connection between the two voice channels being adjusted.
- Transmit tone from the first VNA to the second VNA through the two voice modules, and monitor the input level of the first voice module. To do that while using the CLI, you must enter the show voice channel command to obtain the display. If using Configurator,.use the applicable procedure listed below:
