Call Duration Missing - CEL Reports

Hi Everyone,

I’m looking for some help on an issue.
I’m missing some call durations times on calls that go via a followme to mobiles. This seems to be random as some call do have the call duration.

The call flow goes like this.
Trunk > Time Condition > Queue.
Within the queue group is all our extensions plus 2x extensions that only have followme enabled to mobiles.

From the call logs i cant see much difference other than the LINKEDID_END.
Working call duration ends with -

No call duration ends with -

Thanks

Thanks for the reply.
If that was the case I would assume there would be no call recording, however I can listen to both call recordings.