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#620182 - 05/23/18 02:22 PM Re: Old School Phone Guy Needs a Little Help! [Re: adteldon]  
Joined: Dec 2005
Posts: 617
adteldon Offline
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adteldon  Offline

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Joined: Dec 2005
Posts: 617
Lexington, S.C.
Well, I am apparently a dumba**! Just found out through Vertical that the SBX does not support port forwarding for the VOIP card. It does, however, support it for remote admin, so I had it set up properly all along and that's why I could reach the admin port using the router and local address'. It will support 1:1 NAT behind a firewall/ router using a public static IP address though, so now I will try and figure out how to set that up.I just won't be able to do both admin and voip calls with 1 usable address. Thankfully the newer Summit system supports port forwarding.


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#621596 - 06/28/18 12:39 PM Re: Old School Phone Guy Needs a Little Help! [Re: adteldon]  
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Derrick Offline
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Derrick  Offline
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DMZ may still work. The card would not be any more vulnerable to hacking in the DMZ than it would with its own public ip.


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#621709 - 07/02/18 06:37 AM Re: Old School Phone Guy Needs a Little Help! [Re: Derrick]  
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newtecky Offline
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Irvine, CA US
Originally Posted by Derrick
DMZ may still work. The card would not be any more vulnerable to hacking in the DMZ than it would with its own public ip.


With VoIP, sometimes a DMZ still won't work. I don't know much about Vertical but as one example Toshiba CIX IP phones have never worked through any NAT, even with DMZ. Sometimes I have to explain to a customer's IT that I really do need another public IP address (or a VPN) for their remote phones to work.

Toshiba finally got it to work with NAT on their IPEdge system by using a relay service that knows how to manage NAT IP information.

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