We have installed the free version of 3CX and placed the server at my home adress with one VOIP phone attached.
Another phone at the office connects with the server at my home adress.
Both phones show that they are connected with the server but cannot reach each other by calling.
Might be just some small settings that I have made wrong so looking for an 3CX expert who could quickly soleve this issue.
Will need to work with client by phone to debug and successfully establish links to external phones should take less than a day depending on client knowlege of their system setup and parameters of that setup.