# Janus Doesn't Detect Missed Calls, Using 3cx as the VoIP server

**URL:** <https://janus.discourse.group/t/janus-doesnt-detect-missed-calls-using-3cx-as-the-voip-server/1738>\
**Category:** Resources\
**Tags:** sip\
**Created:** [November 1, 2025, 10:18am UTC](https://janus.discourse.group/t/janus-doesnt-detect-missed-calls-using-3cx-as-the-voip-server/1738 "2025-11-01T10:18:29Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Izaack](https://avatars.discourse-cdn.com/v4/letter/i/9de053/32.png) [@Izaack](https://janus.discourse.group/u/Izaack)\
**Post date:** [November 1, 2025, 10:18am UTC](https://janus.discourse.group/t/janus-doesnt-detect-missed-calls-using-3cx-as-the-voip-server/1738/1 "2025-11-01T10:18:29Z")

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I’m using Janus as the gateway to connect to 3cx pbx which is basically my VoIP. If a call rings and it’s not answered or missed, 3cx IVR automatically plays but this to Janus is transalated to an answered event. How do I handle the missed calls?

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**Author:** ![lorenzo](https://yyz2.discourse-cdn.com/free1/user_avatar/janus.discourse.group/lorenzo/32/425_2.png) [@lorenzo](https://janus.discourse.group/u/lorenzo)\
**Post date:** [November 1, 2025, 1:11pm UTC](https://janus.discourse.group/t/janus-doesnt-detect-missed-calls-using-3cx-as-the-voip-server/1738/2 "2025-11-01T13:11:24Z")

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If 3cx sends a 200 OK, then as far as SIP is concerned that _is_ an answered call.