I can’t set it to private – Online Walkie Talkie Pro Review

I’m sure the app works well but I can’t set the walkie-talkie to privateIt says all you have to do is put in a 20 digit code but once I put in a 20 digit code what is allow me to set it to private so why would you make a private setting if you can’t set it to private
Review by GFTNC5313 on Online Walkie Talkie Pro.