firewall ports

  1. Firewall Destination Ports for Client Apps

    Hi We are running a hosted 3xc service (hosted by a thrid party). We have a locked down notwork, ie heavily restricted outgoing ports going to the interent, no incoming ports at all. What outgoig ports and protocols need opened to allow 3xc client app (on iphone, android and possible dektop...
    • buggycode
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    • firewall ports
    • Replies: 3
    • Forum: 4SC

  2. Solved Firewall ports for V20 - Undocumented change

    According to current 3CX documentation, the ports to open inbound didn't change from V18 to V20, in particular Ports 9000-10999 (inbound, UDP) for RTP (Audio) communications. However, performing a firewall check on V20, the tested range has been increased to 9000-18998. Of course, the firewall...
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