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  1. Outbound Calls Error - 12289 - Twilio SIP

    I've searched the forums and google for hours with no luck. I am testing 3CX SMB Free 10. Everything works as expected incoming, desk phones, softphones etc. When trying to make an outbound call I hear this message "Called number does not exist" The 3CX error logged is : 12289 Device...
    • iatech
    • Thread
    • Replies: 1
    • Forum: 4SC
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