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UC520 Sip trunking without registration - proxy only

Have Broadvix as ITSP - they are recommending that we setup where they authenticate my UC via STATIC IP because they send BTN in their header and UC looks at second header.

Basically, I need to setup the trunk not to try and register or authenticate. I created the trunk using CCA 2.1 and did not fill out the other fields - just the IP address of their proxy.

It's not working - is there something I am missing. Can someone show me some CLI with the right settings to make this work.

Thanks!

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Re: UC520 Sip trunking without registration - proxy only

When you say not working - what does that mean such as inbound calls fail or outbound calls fail? Hard to give an exact CLI config without knowing the current config and what does not work - the guide below gives you a good amount of CLIs that you can use in section 4.4

https://supportforums.cisco.com/docs/DOC-9562

There is also some troubleshooting info at the end of the same doc that would help us understand what fails.

Some earlier posts on Broadvox SIP Trunking to UC500 that may help you

https://supportforums.cisco.com/message/3089994#3089994

https://supportforums.cisco.com/message/3092296#3092296

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