[asterisk-users] Busy indicator for FXO line or extension

bilal ghayyad bilmar_gh at yahoo.com
Thu Jun 28 05:31:37 CDT 2018

Is it possible to configure one button on the IP Phone (like Polycom or general SIP Phone) to indicate (at the phone display) that the line (the line that is connected for FXO port) is busy or not? If it is not busy, the user can press on the button to place outside call.
Also, is it possible to to configure another button to indicate if the extension is busy or not?
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