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3CX SIP NAT Rules

TCF
Has anybody successfully setup a 3CX SIP behind a Sophos UTM? I either get a huge delay when calling to the Voip numbers or if I change my NAT rules I can remove the delay and then not get an audio and all the Firewall test on the 3CX system fail.

Any help is appreciated.


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    TCF, first, check the Intrusion Prevention log to see if the UTM thinks the VoIP traffic is UDP Flooding.  Was that a problem?  When you make the proper exceptions, does your original configuration work?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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  • 0
    TCF, first, check the Intrusion Prevention log to see if the UTM thinks the VoIP traffic is UDP Flooding.  Was that a problem?  When you make the proper exceptions, does your original configuration work?

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
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