In v18 of 3CX there was a function to modify the SIP header of the invitation for incoming calls, but I am not finding this same function in V20. Is it still possible to make these changes? If so, where is it done?
I found it, thanks! Another question: we use Generic VoIP Provider, which is the template I intend to change. By changing this template, will the change be made to all circuits that have this standard? Or can I define this change only for a specific one? That is what I intend to do.