Abnormal ISDN drop

[marshyrob]

Hello

Ive searched this forum and Google to try and gain a better understanding of this event i have seen in "disp events"

1166 Abnormal ISDN drop D2=CV

There seems to be people on here with the same issue but there never seemed to be a resolution. Does anyone have any idea what causes this. We are experiencing calls being dropped after a "whisper" announcement or mid way through a conversation, its quite random so i cant trace the station as we have 200 of them and they can be at anyone of them at any time!

Not sure if this error is related but is seems to indicate so? the telco's say that the ISDN 30's are fine. Also no other errors in alarms or errors.

Can anyone shed any light on this.

Thanks

Rob

 

[gblucas]

The DS1 board looks to be the correct vintage...The trace looks as if the call is being routed over IP trunks to another location. The problem looks to be with the connection between the 2 pbx'es.

Anyone else have any thoughts???

gblucas