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Unread 03-22-2011, 09:31 AM   #1
jll
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Default In house lab

Hello Voxalot,

I have created a lab in house with 2 ATA devices and have come accross a problem. Everything is configured correctly on both ATA's but when I call one extension, I can't hear anything on niether of the boxes. If I call from outside my house, from a friends ATA, I can reach both perfectly and I can hear on both devices.

My question would be on how to make these work in house without having to test from a friends house.

Kind Regards
jll
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Unread 03-25-2011, 01:27 AM   #2
beaver
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multi-ATA behind a router, highly change runs into NAT issue. you need to verify/test any potential NAT issues one-by-one.
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Unread 03-28-2011, 07:57 AM   #3
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how could it be a NAT issue if they are both reachable from an outside connection. My understanding is that from one ATA it should query the voxalot query and then come call the other ATA device; Could this still be a NAT issue... I do have the ATA's on different IP ranges.

How could i debug this? I can ping both ATA's.
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Unread 04-10-2011, 12:44 PM   #4
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check on something called hairpinning on your router. some routers would not allow loopback so internal members having their address mapped to the same public IP would not be able to work.

An easy way to check is setup a web server in your LAN and try to access this webserver from any machine in your LAN using the public IP of your router instead of the private LAN address. If it works then your router will allow loopback.

This is just one scenario that would stop internal calling. There are many other catchups.
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