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T1 on avaya pbx that show errors only when there is traffic

T1 on avaya pbx that show errors only when there is traffic

T1 on avaya pbx that show errors only when there is traffic

(OP)
Hello,

I currently have an issues with a T1 that handles LD calls, When there are no calls on any of the 24 channels, the T1 looks clean of errors (list measurements ds1 log cmd), as soon as there is traffic on it, it starts to show ES, BES and sometimes SES errors, these increment in direct proportion of the # of calls on a given period.

The T1 is 1 of a group of a T3 and only this one has errors, I use avaya pbx. I already replaced the DS1 board, CSU module, cable, slot, media gateway, check DS1, sync, signaling configuration, opened a ticket with carrier and haven't been able to find the root cause, one thing to mention is that these errors/slips are not hear on the calls, only show on the measurement.

Have any of you have experienced this issue? what could be the cause of this?

Appreciate your help.

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