3cx sip server... failed

  1. Cannot Pass Firewall Check

    resolving 'stun-eu.3cx.com'... done resolving 'stun2.3cx.com'... done resolving 'stun3.3cx.com'... done resolving 'sip-alg-detector.3cx.com'... don testing 3CX SIP Server... failed (How to resolve?) stopping service... done detecting SIP ALG... failed (How to resolve?) testing port 5060... not...
    • Cello
    • Thread
    • 3cx sip server... failed detecting sip alg... failed hg255s
    • Replies: 7
    • Forum: Phone System / PBX
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