Installation guide

Configuring analog trunks 5-18
Chapter 5: Configuring Analog and Digital Trunks
Wave Global Administrator Guide
6 Adjust the Transmit Gain and Receive Gain values if necessary.
•
Transmit Gain. If the voice level of outgoing calls is too low, increase the value; if the
voice level is too high, decrease the value.
•
Receive Gain. If the voice level of incoming calls is too low, increase the receive gain;
if the voice level is too high, decrease the value.
Caution: Feedback can result if you set the gain level too high. In most cases, the
default value of 0 should be fine.
7 Record information in the Notes field.
This information could include circuit-specific information or other information from the
Trunk Configuration property sheet. Circuit number and carrier information or brief notes
regarding issues encountered can be entered in this comment field. Field personnel can use
this data to locate and identify the physical circuit connected to the Wave Server.
8 Click
Apply to save your changes.
9 Click
Done to return to the Management Console.
Customizing AC impedance settings on analog trunk ports
You can customize AC impedance settings on analog trunk ports in order to correct echo return
loss problems. In cases where the echo return loss is poor, users may experience unusually loud
side-tone or echo on calls over analog trunks.
Caution: These are expert settings that should not be modified unless you are
instructed to do so by your Vertical Technical Support representative in order to resolve
a specific analog trunk echo problem. Improper settings will degrade voice quality on
calls.
To customize AC impedance settings
1 There are 2 ways to configure AC impedance settings for analog trunks:
•
Via the General Settings applet. Use this method to customize AC impedance settings
for all analog trunks, as part of the system Locale settings. On the System tab click
Customize. When the Customize Locale dialog opens, click Analog Trunk
Impedances
.
•
Via the Trunk Configuration applet. Use this method to customize AC impedance
settings for specific analog trunks or channels. In the Trunk Configuration dialog,
select one or more analog channels and then click
Impedance.
Release 2.0
September 2010