Hey Victor,
No, the host it self you can not access. The only operations are the WebInterfaces (WebClient / Management Consolte). Also the Installs runs in a PBXedition which dont have recording capabilities: https://www.3cx.com/ordering/pricing/
But if we use a PRO license (PoC), are recordings available?
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.