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Could it be possible eventually to add some sort of layer that would make XMPP presence work with 3CX? We just need the BLF to turn red for DND lolTo be more detailed:
BLF means Busy Lamp Field. This basically allows you to monitor the call state of an extension. A BLF on an IP Phone will NOT monitor the profile status of an extension, just the call state. If you configure a BLF on the 3CX App for Windows however, it will monitor both the call state AND the profile status of an extension.
The different call states which can be monitored are:
- Idle. The monitored extension is idle and not in a call
- Ringing. The monitored extension is in the ringing state.
- In Call. The monitored extension is in an active call at the moment.
https://www.3cx.com/3cxacademy/videos/basic/configuring-ip-phones/
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Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.