"VIA" parameter on Sip Trunk.

Discussion in '3CX Phone System - General' started by ccomley, Aug 22, 2012.

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  1. ccomley

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    Sip Trunk supplier is refusing outbound calls because the Invite contains a "Via" statement with a private IP address in it.

    I know i have other clients using this same provider but I can't for the life of me find the click to fix this.

    Any clues??
     
  2. SY

    SY Well-Known Member
    3CX Support

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    Why does it do it?
     
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  3. ccomley

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    Why does what do what?

    The ST rejects the call coz the supplier seems to think a "private" IP in the VIA is a security issue.

    I'm not going to get involved in arguments between ST providers and PBX providers about RFC compliance and stuff! Life's too short.

    The work-around involves putting a NIC in the 3CX box which has a "Public" IP address and ensuring that that is the NIC used by off-site communications.
     
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