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In this form that you get by the RTP main menu entry, you can set up the voice transport features. Rtpstart and Rtpend are the number of RTP ports available for the calls.
| Noteinfo |
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Each call uses 4 ports, thus you can do your math on the RTP number necessary in your configuration multiplying the number of foreseen concurrent calls for 4. |
In the example shown in
you see:Xref AnchorName rtp form
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Key is a shared numeric key to be reported on the clients configuration as well.
| Warningtip |
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To avoid calls problems such as abruptly interrupted calls you make sure the obfuscation mode and key are equally set up on the server and the clients. |
2.4.5 NAT Configuration
If you are using the appliance in an internal network then it's most possible that you need to configure the NAT option. NAT stands for Network Address Translation and it's commonly used to let services on a private IP address to be reachable by a public IP address.
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