[App_rpt-users] Listener

Hello to you all, I have people who would like to listen to amateur repeater without having an amature radio I would like to have a method to do it, so they can listen only, either with IAXRPT or with Zoiper without giving them access to the PTT so they can't pass onto amateur bands. Does anyone have an idea that would have a solution to use IAXRPT without giving them access to the PTT? Thank you and Happy Day Luc VE2LUQ