If you have Switchvox version 5.x on an appliance with a FAX license, you will need to re-apply a new FAX license after you update to version 6.x. There is no purchase necessary, you just need to re-register for faxing under 6.0.
Once you have updated:
- Open Tools > Digium Addon Products
- Select Fax from the dropdown
- Fill out the registration form
At that point, you'll be able to send and receive faxes again as you did under version 5.x.
Note: On version 6.0 and later only one Fax license is required and will handle multiple faxes.See also:
Supported Faxing