Does anyone know any open source or tools to encrypt the VoIP packets (Singnaling/RTP)? Becuase some ISPs they are interpting the Voice packets. so i we will use the encryption it will be very hard for him to know the packets.
Already i tried with openVPN but the quality is still bad and the ISP interption is there.
I will be appricaite if anyone can tell me the tools or library to encrypt the packets.