Good day!
I can help to setup a cloud machine for send out and receive fax.
I work with a team of senior (Level 3) system administrators.
A few months ago we had a bit similiar project. Please, check our profile: https://www.freelancer.com/u/tangramua#/reviews (project: Setting up Ubuntu fax api to send Emails)
We have experience with such technologies as Virtuozzo, different types of virtualization (OpenVZ, KVM, XEN), different distributives of OS Linux / OS Unix / OS MS Windows Server systems, VPN/DNS/IPTables/Firewalls/web servers/mail servers configuration and tuning.