Why doesn’t 3CX Support STUN for IP Phones for customers using the Hosted by 3CX Service?

Question:
Why doesn’t 3CX Support STUN for IP Phones for customers using the Hosted by 3CX Service?

Answer:

Following is an explanation of why 3CX does not support STUN for customers using Hosted by 3CX:


If you set up a phone using STUN this means that the Phone has the same Public IP address as the users in the office. Should the phone send the wrong credentials to the PBX - meaning the Public IP, not the Private IP, then none of the users at the office will be able to connect to the PBX.This would also block any external users with the same Public IP, for example users connected to the office.


By using the 3CX SBC you completely avoid all these problems, which is also why we do not support STUN.