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  1. Can't call from outside the office.

    Hi all I had system phone ip with 3CX free vesion. In my site, the system worked well. But, I don't made calls from out office. I have nat following port on my router. TCP/UDP 5060 - 5061 UDP 9000 - 9049 TCP/UDP 5090 The status on soft phone "Server Failure". Thanks any comments.