SIP Trunking Implementation: A Systems Approach
Given opportunity for design errors when implementing SIP, extensive design planning and communication are critical to ensuring success.
Session Initiation Protocol (SIP) is inherently simple. It is readable, meaning that with a probe you can follow the session initiation by simply reading the messages as they travel between two devices. The protocol does not establish the route the content will traverse, nor its quality. After the session is established, SIP, as a protocol, is only responsible for ending the session.