Internet TCP port 506 is primarily used by Session Initiation Protocol (SIP), a communication protocol for signaling and controlling multimedia communication sessions. The most common applications of SIP are in internet telephony for voice and video calls, as well as instant messaging, over Internet Protocol (IP) networks. Examples of software that use this port include VoIP services like Skype and Cisco's communication manager. Other applications include video conferencing tools and interactive gaming.
No information available
