ECHO

[GroundRatt]

I have a definity r ver11 and I have an echo on the phones when a caller calls in from long distance or when we make a long distance call. I have changed the echo cancl to y on the trunks but there is no change. Is there another place to look? What are the possible causes? Any help is much appreciated..Thanks to all

 

[mike144]

try "chan syn" primary should be the T1 provider DS1

 

[rustytelco]

You need to contact your phone service supplier to check the circuits for a hot connection. This is where some of the phone circuits may be touching either on the punchdown block in your phone demark or somewhere outside your building just not enoough to cause the echo but not shorting it out.

 

[bhanson184]

On your DS1 form you can have Echo Cancellation turned to yes. Avaya does charge for this.Under "Change System-Parameters Customer-Options" - DS1 Echo Cancellation? y
Also on the trunk group form this needs to be set to YES.
In one on the Avaya documents it states what the settings are on the DS1 parameters. Once this is set to YES the next options is a numeric options. The settings ore 1-15 plus you can have EC for incoming or out going calls or both.
Change DS1 XXXXXX
Echo Cancellation? y
EC Direction: outward
EC Configuration: 2
We suffered with this for a long time. The local company always said they had no problem. Avaya finally activated this feature. It only helps some. On certain types of calls echo is still an issue.

BHanson

 

[NX01]

This is only true for TN464's

In the future everything will work...

 

[NX01]

Forget what I said...

In the future everything will work...

 

[phoneuser]

We had the same trouble but ONLY with Verizon ( Boston Area)
we have multiple sites with 5 PRI at each site for inbound/outbound local ..as well point to point between
all sites ( 2 each)

We also have MCI trunks(long distance) that had no issue because MCI turns on Echo Cancellation come to find out Verizon is one of the few that does not

Change DS1 XXXXXX
Echo Cancellation? y
EC Direction: inward
EC Configuration: 4 (default is 4)

it helped out more so on our IP PHONES as the Digital & Analog phones did not have an issue

 

[ph0neguy]

When the pbx users have the echo you want to use inward and when people outside the pbx hear the echo you want to use outward. The default setting is 1 which ads 6db of loss onto you're calls. I use 4 because it works just as well bud doesn't add any loss.

 

[hartmj]

I have DS1 Echo Cancellation turned on in customer options and also have it set to yes on the trunk group form, but I don't see the options under change DS1 listed below?

Echo Cancellation? y
EC Direction: outward
EC Configuration: 2

I am wondering if you have to have maintenance service permissions turned on to see these fields? I don't right now since we switched our maintenance from Avaya. Any help would be appreciated. Thanks,

Josh