Misc. Dialplan Tools hangup
From FreeSWITCH Wiki
Hangs up a channel, with an optional reason supplied.
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Example
<action application="hangup" data="USER_BUSY"/>
If you use hangup after a bridge FreeSWITCH overrides the cause with the cause recieved from the bridge application. You can avoid this using sip_ignore_remote_cause=true
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