Hi,
I have the same problem in my network and want to know the solution for this.
Please guide where (on controller) and what exactly ACLs or rules to be implemented if we want to block all voip traffic except SKYPE, VIBER, WHATSAPP, FACETIME. I want to allow voip traffic only from popular and most commonly used interfaces like skype, viber, whatsapp and facetime and block all other except these apps.
Please help.
Thank you.