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Access deployment HNT issue

edited Nov 20, 2014 10:24AM in Acme Packet (MOSC) 10 commentsAnswered

Hi,

 

I'm setting up an access deployment for UA to register to a SIP registrar, through the SD. Some of the UA are behind NAT, some are not.

 

When making a call from the UA behind NAT to the UA without NAT the call connects every time, but every 60 seconds or so a few calls are placed where the media will fail. I believe I've found the issue, being that the UA behind NAT mostly sends a CONTACT header with user@ip, but when the call fails the CONTACT header shows user@domain. This causes the HNT not to initiate because the VIA and CONTACT IP are not the same, so the media tried to go to an IP behind the NAT and fails.

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