Volume control on using confbridge

Hello Team
I have new setup of vicidial and configure confbridge as per vicidial forum.
SVN version : 3920
asterisk version : 18.21
astguiclient version : 2.14-937a
volume control feature is not working in this. I am getting below error in asterisk CLI.
No such extension/context XXYYXXYYXXYYXX19600000@default while calling Local channel
I want to know is volume control working with confbridge because I have checked backend file AST_send_action_child.pl and in that file logic is using meetme.
Can you please help me with this?
Thanks
I have new setup of vicidial and configure confbridge as per vicidial forum.
SVN version : 3920
asterisk version : 18.21
astguiclient version : 2.14-937a
volume control feature is not working in this. I am getting below error in asterisk CLI.
No such extension/context XXYYXXYYXXYYXX19600000@default while calling Local channel
I want to know is volume control working with confbridge because I have checked backend file AST_send_action_child.pl and in that file logic is using meetme.
Can you please help me with this?
Thanks