Generally if you want to send a cause 17 to the caller you would use Hangup(17) and let the caller's switch generate the busy tone.
If the dialplan has already answered the call, then you might want to use Busy or Playtones. From: asterisk-users-boun...@lists.digium.com [mailto:asterisk-users-boun...@lists.digium.com] On Behalf Of Justin Killen Sent: Wednesday, July 09, 2014 8:15 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: [asterisk-users] busy() not setting PRI_CAUSE Okay, I think I need a sanity check here - If I call a person that's on the phone, I should get a busy signal. Now more specifically, a call comes into the pbx via PRI. The destination dialplan runs busy(20). Now, the PRI causecode should get set to 17 (user busy) so that the originating end can play a busy tone, correct? -Justin
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