A New Internet-Draft is available from the on-line Internet-Drafts
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Title : Discovering Outbound Proxies and Providing High Availability with Client Initiated Connections in the Session Initiation Protocol (SIP)
Author(s) : J. Rosenberg
Filename : draft-rosenberg-sip-outbound-discovery-mid-dialog-00.txt
Pages : 31
Date : 2006-10-13
In many deployment configurations, Session Initiation Protocol (SIP)
clients are capable of initiating connection requests towards their
SIP server, but the SIP server cannot open connections towards the
client. Specifications have been developed which allow for a client-
initiated connection to be used for incoming requests towards the
client. This outbound connection involves the use of a SIP proxy,
called an outbound proxy, that the client connects to. However, the
specification does not provide a means to discover the outbound
proxy, nor does it support high availability for failures of the
outbound proxy mid-dialog. This specification fills those gaps. The
resulting mechanism additionally provides solutions for inter-proxy
connection reuse and usage of certificates with SIP.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-rosenberg-sip-outbound-discovery-mid-dialog-00.txt
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