# Concurrent user visualization

**URL:** <https://discuss.elastic.co/t/concurrent-user-visualization/56488>\
**Category:** Kibana\
**Created:** [July 27, 2016, 9:10am UTC](https://discuss.elastic.co/t/concurrent-user-visualization/56488 "2016-07-27T09:10:28Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![LeeDr](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leedr/32/9289_2.png) [@LeeDr](https://discuss.elastic.co/u/LeeDr)\
**Post date:** [July 27, 2016, 10:00pm UTC](https://discuss.elastic.co/t/concurrent-user-visualization/56488/3 "2016-07-27T22:00:51Z")

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You might try this;

> [@Display concurrency in data on Kibana](https://discuss.elastic.co/t/display-concurrency-in-data-on-kibana/26006):
>
> I have fields with start date and duration (seconds) representing start and duration of a phone call. I would like to define concurrency (a number) when the same destination (also a field) is active within the same duration. That is if a ncall starts now for 30 seconds and another call to the same destination starts 15 seconds into the first call, concurrency should be 2 for the remaining 15 seconds. How do I define this in Kibana visualization as a line graph over time?

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