Medias Mediatrix 1204, Reference Manual

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Web Interface – SIP Parameters
The SIP page allows you to configure the various SIP-related parameters of the Mediatrix 1204:
General SIP configuration parameters
SIP Interop parameters
Security parameters
SIP Servers Configuration
The Configuration sub-page of the SIP page allows you to configure the SIP server and SIP user agent
parameters of the Mediatrix 1204.
SIP Servers
The Mediatrix 1204 uses the following types of servers:
Proxy server
Outbound Proxy server
Presence Compositor server
Proxy Server
The proxy server is an intermediary program that acts as both a server and a client for the purpose of making
requests on behalf of other clients. A proxy server primarily plays the role of routing, which means its job is to
ensure that a request is passed on to another entity that can further process the request. Proxies are also
useful for enforcing policy and for firewall traversal. A proxy interprets, and, if necessary, rewrites parts of a
request message before forwarding it.
Outbound Proxy Server
An outbound proxy is an intermediary entity that acts as both a server and a client for the purpose of making
requests on behalf of other clients. The outbound proxy receives all outbound traffic and forwards it. Incoming
traffic may or may not go through the outbound proxy. The outbound proxy’s address is never used in the SIP
packets, it is only used as a physical network destination for the packets.
When the outbound proxy is enabled, the proxy is still used to create the To and the From headers, but the
packets are physically sent to the outbound proxy.
The outbound proxy is enabled if the IP address is valid (i.e., not 0.0.0.0).
Presence Compositor Server
A User Agent Server (UAS) that processes PUBLISH requests and is responsible for compositing event state
into a complete, composite event state of a resource for a presentity.
Standards Supported • RFC 3903 – Session Initiation Protocol (SIP) Extension for
Event State Publication
• RFC 3863 – Presence Information Data Format (PIDF)