Recently have deployed several hosted asterisk / freepbx installions
Can build on suitable VPS or physical hardware (will need secure access to machine while building, VPS preferred)
You will need to supply VPS or hardware.
VPS preferably will support Qemu type graphical install (for official dist) otherwise will need to be built from source (some commercial modules may not be available as sagoma have broken the dists). I am comfortable with building from source , but this can be problematic if you want to use commerical modules
Please note video calling often requires certain client apps codecs and licenses in many cases (eg zoiper needs gold paid version for video calling).
Installation will be secure. SSH and web interface via openvpn ONLY. Non standard SIP port used to avoid attention from malicious scans. if you have sip trunks from a provider (for calls from public network I can integrate these if necessary.
Full spec documents required before start. I will setup a minimal amount of extensions if required , administration and maoves adds changes of the system is *NOT* however part of this bid. can be negotiated later.
I dont use fail2ban or built in firewall . I use APF and BFD (iptables) instead.
My own server is on binary lane in using official dist, extensions , trunks and conf bridge.
will handover working system. Open VPN config keys delivered securely + login details etc
can either use an existing SMTP account for notifications or create a gmail to be used