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Battling Crosstalk for Months with Avaya still no resolve

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marcion

IS-IT--Management
Jun 3, 2009
4
US
I have end users reporting cross talk on about 10 out of 100 calls daily and sporatically.Typically happens more during peak hours. We were getting cross talk on about 5 out of 10 calls, but we were able to do some testing with avaya and narrow it down to a medpro sitting in a bad slot on a carrier. Swapped the medpro used same slot still same issue, swapped entire carrier and used same boards and we dropped from 5 out of 10 calls daily to 1 out of 10 calls daily. Crosstalk improved greatly and now I am unable to reproduce it as easily, which is making it hard to pinpoint the remaining problem. I have been working with Avaya since Sept and replaced a pn that we thought was causing the lingering crosstalk on 1 out of 10 calls daily, but that did not work. The weird thing is that we have 2 call centers, 1 has an IVR and 1 doesnt, and the one that does not have an IVR can still hear the IVR crosstalk. The only thing that routes from the IVR building to the non IVR building is a trunk group as all trunk groups route into the buidling with the IVR and are ip connected to other buildings. The IVR building is our main buiding with about 14 port networks. The non IVR building has its own single port network. Anyone have any suggestions on what the next step would be. BTW this all started happening when our core switch went down and was brought back up. I am at a loss right now and unable to figure this thing out.
 
Just to add

Phones - 607a1 Call Master V
 
Hi,

If you are calling from callmaster DCP phones why would the medpro be an issue ....these are only used for IP to TDM calls
 
What type of inbound trunks do you have?
How are is the IVR connected to the PBX?
Is there inbound lines at both locations?
If a call comes in at location 1, do you get cross talk at location 2, and what if about the other way around?

And "ccltd" medpro is used with IP trunk between the locations.
 
Did this get resolved. It could be that some device is not grounded properly. It is a strech, but possible.
 
IVR is connected to the PBX using an AES server and Lineside T's assigned to virtual agents logged into virtual stations.

There are inbound lines at both locations

Just to give an update I moved 1 trunk group that was servicing our building that takes calls with no IVR in front of it to a different g650 and guess what, that building has no more crosstalk, which tells me that the problem is in our port network where some of the ivr linesides still reside as that is where this trunk group was prior to me moving it. I swapped one of the G650's prior to moving the trunk group, so maybe i need to swap the other.


What do you mean what kind of trunks, meaning like inbound only outbound only?
 
CM Version is 5.0.11 Sp4.03

Now I am getting reports that when a person is put on hold they can hear crosstalk which is different from what was previously experienced as the end user only could hear it prior and not the calling party.
 
just wondering...
when you swapped out that port network, did you also get new tdm bus cables and terminators?
 
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