Protocol Basics
Layer: Application
Transport: <acronym title="Transmission Control Protocol">TCP</acronym> or <acronym title="User Datagram Protocol">UDP</acronym>
Port(s): 5060, 5061
RFC(s): 2543, 3261
SIP (Session Initiation Protocol)
SIP is by far the most popular protocol used in VoIP communication today. SIP was designed as a …
