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  1. 3cx Telekom BNG (NGN) keine ausgehenden Telefonate

    Habe leider das leidige Problem bei allen Kunden die einen BNG Anschluss der Telekom haben, das sporadisch alle ausgehenden Telefonate nicht funktionieren. Call or Registration to 01511XXXXXXX@(Ln.10000@Deutsche Telekom SIP-Trunk (NGN)) has failed. 217.0.26.67 replied: 403 Forbidden...
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