Does anybody have some pointers on what a SIP user agent should do
on receiving a 3xx redirect?
RFC 3261 does not go into much detail ("to be tried", "SHOULD
retry").
Should the UA prompt the user for confirmation?
That seems important since the new address might involve a route
with higher cost.
http://tools.ietf.org/html/rfc3261#section-13.3.1.2
---cut---
13.3.1.2 The INVITE is Redirected
If the UAS decides to redirect the call, a 3xx response is sent.
... SHOULD contain a Contact header field
containing one or more URIs of new addresses to be tried.
---cut---
http://tools.ietf.org/html/rfc3261#section-21.3.3
---cut---
21.3.3 302 Moved Temporarily
The requesting client SHOULD retry the request at the new address(es)
given by the Contact header field (Section 20.10). The Request-URI
of the new request uses the value of the Contact header field in the
response.
---cut---
Philipp Kempgen
--
AMOOMA GmbH - Bachstr. 126 - 56566 Neuwied -> http://www.amooma.de
Gesch?ftsf?hrer: Stefan Wintermeyer, Handelsregister: Neuwied B14998
Asterisk: http://the-asterisk-book.com - http://das-asterisk-buch.de
Videos of the AMOOCON VoIP conference 2009 -> http://www.amoocon.de
--