- Type
display system-parameters customer-options and press
Enter. On screen 2 verify that the
DS1 Echo Cancellation? field is set to
y. If not, get a new license file.
- Type
[add | change] trunk-group [next | number] and press
Enter. See Trunk Features screen.
- On Trunk Features, screen 2, set the
DS1 Echo Cancellation? field to
y.
- Type
[add | change] ds1
UUCSS and press
Enter. See DS1 Circuit Pack screen.
- On the DS1 Circuit Pack screen, set the
Echo Cancellation? field to
y.
When set to
y, 2 new fields display:
EC Direction: and
EC Configuration:.
- If you know the echo is coming into DEFINITY, keep the default setting for the
EC Direction: field of
inward.
- If you know that the distant party is hearing echo that originates in DEFINITY or its line side stations or equipment, set the
EC Direction: field to
outward.
Keep the default setting for the
EC Configuration: field of
1. This setting rapidly minimizes echo when first detected, regardless of the loudness of the talker's voice.
- Test the voice quality on a telephone connected through the TN464GP or TN2464BP circuit packs and known to have echo to see if the echo was eliminated.
- If the echo still exists, set the
EC Configuration: field to
2,
3, or
4, then test the voice quality. These settings provide help for the following scenarios:
- Setting 2 minimizes speech clipping, but it takes a fraction of a second longer for the echo to fade.
- Setting 3 eliminates speech clipping, but a strong echo may take 2 or 3 seconds to fade.
- Setting 4 minimizes extremely strong echo, very hot signals, or excessive clipping or breakup of speech from a distant party. It reduces speech clipping but may allow slight residual echo or more background noise.
- If after trying all these settings, the echo still exists, contact technical support. For telephone numbers, go to Avaya Support Centre and select
ONLINE SERVICES, then select
- Contact Us.
Trunk Features screen
