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  1. Outbound Calls Failing on 3CX v20 Free Edition with Twilio SIP Trunk

    Hello, I’ve been trying to set up a SIP trunk to Twilio on 3CX version 20 (free edition), but I’ve run into an issue with outbound calls failing. This same configuration has worked on other versions and with other PBX systems, but it does not seem to work on 3CX v20. Here’s the situation...
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