Enable port 5000 from IPs external to the local network

[bytesolutions]

Good morning everyone.
I am using 3CX 18.0 (Build 461) on Debian hosted on cloud Vm.
I need to expose the address book on the internet. Currently I reach her using this address:
https://*public_IP:5001*/provisioning/*randomcode*/cisco_phonebook.xml
Unfortunately, my cisco SPA504s do not accept HTTPS encrypted XML Directory Service URLs, but only XML Directory Service URLs in HTTP. Unfortunately, however, using the string:
http://*public_IP:5000*/provisioning/*randomcode*/cisco_phonebook.xml
I get this message: 403 Forbidden nginx
I believe this is a Debian block, as it does not accept HTTP requests from external IPs. It's correct?
Is there a way to solve this problem? The 3CX server is hosted on Vm and I have no way to create VPN to reach the server from local ip's.
I ask you for help.
Thank you

 

[NicholasP_3CX]

We do not allow port 5000 from external locations. This is for security reasons

These are the limitations of the Cisco SPA devices as per our configuration guides



I would not recommend trying to get port 5000 open to the outside world. It is best to use supported devices, or to use 3CX applications.

We will NOT compromise on the security of the PBX for any reason.