Victor Kueh wrote:
>
> Dear All,
>
> Sorry if this question has been brought up before, but I
> would like to know what should the proxy server do if it receives a
> retransmission of INVITE message when it has already sent a 1XX response
> upstream (this happens when the 1XX response has not reached the UAC yet
> and hence the retransmission) - should it forward the INVITE message
> downstream or just discard it?
>
> What if in the case when the proxy is stateless?
A stateful proxy will retransmit the 1xx response. It doesn't
proxy the INVITE again as it will already be following the
rules for retransmissions of INVITEs. (Section 10.3).
A stateless proxy does not create responses and should proxy
the retransmitted INVITE.
Cheers,
Neil.
--
Ubiquity Software Corporation, UK http://www.ubiquity.net
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