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We have recently setup Operator server in our office with snom phones. We run a Control box as our primary router/firewall. Everything was working well so we decided to move the server to our data center. Our phones can no longer register with the Operator server, apparently due to well-known packet routing issues with UDP and NAT. I originally posted to the Control forum in the hopes that they could add an appropriate routing feature to handle this, but I was referred to this forum instead. So my question to the Operator team would be...can Operator be made to use TCP as well as (or instead of) UDP?
Vladimir Toncar (Kerio)

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With Operator 1.0, we focused on the use case with phones in the local network and a SIP provider to whom you connect through NAT. There's not additional NAT support for other situations. I think your phones should be able to register even using UDP but calls might or might not work normally. We plan to improve the support for other NAT scenarios in Operator 1.1 and 1.2.



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We have the same setup, (control, and operator) and have had very good success with phone working on multiple networks, over kerio vpn with soft phones, as well as snom phones outside the network with the WAN ip.

I attached the rule we use. Bear in mind it may include ip's and ports for our call routing for external lines.

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