My CME kills outgoing calls after precisely 20mins

[fearless.rabbit]

At precisely 20mins of any outgoing call, CME just kills the call. You dial again and have another 20mins. Any idea what this might be related to?

[paolo bevilacqua]

Maybe mention which type of lines you are using ?

[fearless.rabbit]

Hi Paolo,

I am using primary ISDN. Phones have assigned public numbers directly from ISDN.

Thanks,

Milos

[paolo bevilacqua]

Tale debug isdn q931 when the call drops.