Ejemplos SIP RFC 3261

The document contains a detailed presentation of SIP (Session Initiation Protocol) examples as outlined in RFC 3261, addressing various aspects such as registration and session setup between user agents (UAs). It elaborates on the structure of SIP messages, including headers, parameters, and the process for establishing a connection between different domains. Key details regarding the content and routing of SIP messages like INVITE, 100 Trying, and 180 Ringing responses are also described.