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Custom Outbound paramaters needed for SIP Trunk

Discussion in '3CX Phone System - General' started by Johan Slabbert, Dec 13, 2017.

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  1. Johan Slabbert

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    Hi

    I have a 3CX V15.5.0

    Problem is my Trunk provider needs me to send the SIP invite in a specific format, that is not standard. Also the Remote Party ID should not be part of the invite? Anybody out there that can assist me perhaps?

    This is the format:

    sip:0800800808@x.x.x.x:5060

    and as I said Remote Party ID should not be part of the SIP Invite
     
  2. NickD_3CX

    NickD_3CX Support Team
    Staff Member 3CX Support

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    If you don't want RPID to be present, just set its variable to "Leave Default".

    Also in the Outbound Parameters of a SIP Trunk, next to each SIP Field, there is a variable called "Custom Value" that unlocks a text box that you can write anything you want in.

    From what I gather this is not a supported provider. Just to tell you, when we make templates for providers and we undergo this tedious procedure, it takes us hours to get everything tested and working properly.
    What I mean to say is, get ready for a loooooot of testing, and trial-and-error, and to get familiar with Wireshark (my experience at least).

    Alternatively you could check if there is a supported provider that could cover your needs: https://www.3cx.com/partners/sip-trunks/
    Remember, even if you don't see one listed for your country, you can always check the ones we have listed as "Worldwide" which offer numbers for a great number of countries worldwide, even if they aren't based in your country itself.
     
    Nick Galea likes this.
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