3-way Call Barging , to Coach my Agent during live call

Hi!
I want to coach my agent during his live-call to the client were both using USB HEADPHONE , is it possible to communicate with my agent ,
but the client should not hear me in the live-call? Is the vicidial capable for this feature?
Thanks
I want to coach my agent during his live-call to the client were both using USB HEADPHONE , is it possible to communicate with my agent ,
but the client should not hear me in the live-call? Is the vicidial capable for this feature?
Thanks
