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How do I setup multiple ATA's to use the engin service behind one NAT firewall?

Votes: 1

Posted: 12 Sep, 2007
by: Engin *.

Updated: 03 Jan, 2008
by: Engin *.

To setup multiple ATA 's to the engin network, you will need to change the SIP and RTP ports incrementally under the SIP and LINE 1 tabs for your Sipura ATA .

For example, if you have 2 x Sipura SPA-2000's, you will need to setup 4 port forwarding rules and also change the SIP and RTP ports respectively for each ATA . For simplicities sake, we have called the first ATA " SPA Y" and the second ATA " SPA Z" in the following example.

For the first ATA

Set up a port-forwarding rule for UDP 5060-5061 to be forwarded to your "SPA Y" IP address
Set up a port-forwarding rule for UDP 16384 -16386 to be forwarded to your "SPA Y" IP address

For the second ATA

Set up a port-forwarding rule for UDP 5062-5063 to be forwarded to your "SPA Z" IP address
Set up a port-forwarding rule for UDP 16387 -16389 to be forwarded to your "SPA Z" IP address

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