srv

  1. SIP trunk registration failure caused by querying wrong DNS record (A record instead of SRV record)

    Hello, Yesterday I upgraded from 3CX 15.5 to 16.0.5.619. After the 3CX service started up, it was repeatedly failing to register with our SIP provider. Note that our SIP provider address is entered as a FQDN and we're using Google (8.8.8.8 and 8.8.4.4) as our DNS servers. I did a packet...
    • Jon
    • Thread
    • dns error resolving fqdn sip srv srv fail-over failover dns trunk
    • Replies: 3
    • Forum: Phone System / PBX
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