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- Oct 18, 2018
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I'm trying to implement a Windows SBC in a remote office we have. It is not working for us. I hope that someone here has one that is working and can help to understand how a working system works.
I've been told the session border controller forms a secure tunnel between the remote office and the 3CX PBX server. Not knowing how this works exactly is making it difficult to diagnose.
q1: If I do an nmap against the SBC (no firewall), no ports are open below 500 (just the usual MS ports). What ports should be open on a working SBC?
q2: There is a configuration file in ProgramData and another set in the registry. Which one is being used?
I am taking a working phone from the main office on the same network as the 3CX server and putting it on the remote LAN. I make no changes to the phone provisioning. Should I be making changes?
Wireshark dumps show the phone trying to work in the remote office like it is working in the main office, i.e. reaching out to the local IP address of the 3CX server which is not accessible in the remote office.
I'm not finding that the 3CX instruction files are very helpful. Can anyone help me?
I've been told the session border controller forms a secure tunnel between the remote office and the 3CX PBX server. Not knowing how this works exactly is making it difficult to diagnose.
q1: If I do an nmap against the SBC (no firewall), no ports are open below 500 (just the usual MS ports). What ports should be open on a working SBC?
q2: There is a configuration file in ProgramData and another set in the registry. Which one is being used?
I am taking a working phone from the main office on the same network as the 3CX server and putting it on the remote LAN. I make no changes to the phone provisioning. Should I be making changes?
Wireshark dumps show the phone trying to work in the remote office like it is working in the main office, i.e. reaching out to the local IP address of the 3CX server which is not accessible in the remote office.
I'm not finding that the 3CX instruction files are very helpful. Can anyone help me?