Upgrade path from 10.13.66.20 to SNG7-FPBX?

Hello everybody,

How can i perform the update without crashing my system ?

I am also using Openvox BRI cards will i 've any issues on DAHDI configuratiuon ?

Thanks

Upgrade script is coming soon, but not yet available.

Certainly a possibility, make sure you have a solid backup you can restore from in case of issues with the upgrade. If the cards require OpenVOX drivers, make sure they are available for CentOS 7.