We'd like to use the fax server to send and receive faxes using a standard POTS line since voip faxing is not very reliable. If possible sending faxes using the Windows Fax & Scan client, on networked Windows 7 clients. 3CX is running on Server 2008 R2. What additional hardware and setup do I need to accomplish this for both sending & receiving with 3CX ? Thanks for your help.