Calculating max concurrent calls from start/end timestamps

Graylog Central (peer support)
1

Hi all!

I’m gathering phone call records, which include “call start” and “call end” timestamps for each entry. My goal is to determine and display the “Highest concurrent call count” during the specified time range.

Is it feasible to generate a data table within Graylog that shows this maximum concurrent call count?

Thank you all.

Example data:
image

timestamp 2025-07-19 06:39:55.467
call_start_timestamp 2025-07-19 06:39:44.000
call_end_timestamp 2025-07-19 06:39:51.000
connected_time 00:00:07

Graylog 6.3.1 on Ubuntu 22.04.5

2

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