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Login to the Web User Interface of the phone.
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Go to Advanced>SIP/RTP> SIP>Network Identity Port: 5060
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Go to Advanced>SIP/RTP> SIP>Listen TCP Port: On
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Click apply
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Go to Advanced>QOS/Security>Security>Filter Packets From Registrar: Off
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Click apply
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If you previously configured an Identity on the phone you may need to disable the Identity by turning it Off.
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Go to the Directory of the phone, from the Web UI, and in the number field enter the SIP URI for the far end device you are trying to call. Example: sip: 192.x.x.x where the 192.x.x.x is the actual Public or Private IP address of the other phone.
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Set Number Type: SIP, Outgoing Identity: Active, and then click add.
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Click "Save" and then "Reboot" at the top of the page.
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Repeat Steps 1 - 9 on the other phone.
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Place a test call by pressing the "Directory" key on the phone, select the IP address of the phone you configured in Step 7, and then press the dial key.
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The call should complete.
How To Make Peer-to-Peer IP Calls without a Registrar
Modified on: Mon, 20 Jan, 2020 at 4:51 PM
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