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Multiple VoIP DMZ question

jengle21
I have a general VoIP deployment best/practices type question which may lead to more specific practical implementation questions. 

I currently have a PIAF instance connected exclusively to a DMZ interface. The PIAF instance is utilizing a GV number (XMPP)for making and receiving calls domestically and works just fine.

I would like to install another DMZ interface for my viatalk (International) VoIP service. I would prefer not to put anything in front of my UTM WAN interface but would be open to the idea if it makes more sense. 

Looking into the ports that need to be forwarded for viatalk (SIP) I am thinking that there may be a problem trying to "split" these two VoIP services onto separate DMZ interfaces.

Are there any ideas/recommendations on how to best accomplish this task? TIA for any thoughts or comments.


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  • 0
    Hi, you can use the UTM's VOIP Proxy (aka VOIP Security) for SIP services; I would recommend trying that with ViaTalk (instead of using DNATs).

    If you're using XMPP for Google Voice, I don't know if that works with the VOIP proxy or not. 
    Are you doing DNATs for it now? On which services/ports?

    Barry
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  • 0
    Hi, you can use the UTM's VOIP Proxy (aka VOIP Security) for SIP services; I would recommend trying that with ViaTalk (instead of using DNATs).

    If you're using XMPP for Google Voice, I don't know if that works with the VOIP proxy or not. 
    Are you doing DNATs for it now? On which services/ports?

    Barry
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