Dialogic HMP parameter IPPARM_DEFER_PENDING_REINVITE possible side-effects

Hi,

We've had problems with SIP RE-INVITEs and SIP 491 in our environment and we followed this page to solve them:

http://www.dialogic.com/support/helpweb/helpweb.aspx/4280/powermedia_hmp_rejects_a_re_invite_with_491_request_pending/PM_HMP_WIN

But now we are seeing that some INVITEs sent to Dialogic HMP are taking too long to have a response, the PBX tries to resend the unanswered INVITEs 4 times until the PBX quits trying.

The parameter IPPARM_DEFER_PENDING_REINVITE can be the source of those problems?

I'm attaching a packet capture of the scenario, IP 192.168.46.43 is the Dialogic HMP host, IP 172.17.0.200 is the PBX host.

Some problematic calls are around the time of capture 700.07, 931.39, 960.09, 1905.54, etc.

Thanks.