[OpenSER-Devel] question about 302 message

[Klaus Darilion]

You could try adding a "q-value" to the contact uri.

But I'm not sure if the meaning of multiple contact headers in 3xx is 
defined at all.

regards
klaus

Di-Shi Sun wrote:
> All,
> 
> We did a test for OpenSER working as a redirect server. It returns a 302 message with 2 destinations in the Contact header ("Contact: 2222222222 at 172.168.0.2, 2222222222 at 172.168.0.3"). It looks fine. We want the source device to try the first destination and do failover to the next destination if necessary according to rfc 3261. But no a source device we tried can handle it correctly.
> 1. Snom 360 softphone only try the first destination. After the destination returned 404, the softphone stopped the call.
> 2. X-Lite softphone only try the second destination. After the destination returned 404, the softphone stopped the call.
> 3. Asterisk cannot handle a Contact header with 2 URIs. We posted a patch to make it only try the first destination.
> 4. Cisco 2600 IP/IP gateway also cannot handle it perperly.
> 
> Did anybody have the experience for this test case? What source device should be used?
> 
> Thanks,
> 
> Di-Shi Sun.
> 
> 
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