Title: Session Initiation Protocol (SIP): Locating SIP Servers
Author(s): J. Rosenberg, H. Schulzrinne.
Status: PROPOSED STANDARD
Date: Jun 2002
Length: 42310
Obsoletes: RFC2543
The Session Initiation Protocol (SIP) uses DNS procedures to allow a client to resolve a SIP Uniform Resource Identifier (URI) into the IP address, port, and transport protocol of the next hop to contact. It also uses DNS to allow a server to send a response to a backup client if the primary client has failed. This document describes those DNS procedures in detail.
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