3CX offers both annual and perpetual licenses:
- - Annual licenses are yearly subscriptions and is priced based on the number of simultaneous calls required. You can upgrade your subscription at any point in time by just paying the difference for the remaining period.
- - Perpetual license prices includes maintenance for the first year, after which an annual maintenance renewal (fee) is required. 3CX maintenance entitles you to one year of updates, tested phone firmwares, security updates and the smartphone clients (which are licensed by year only and require valid maintenance).
- - Maintenance is applicable on Perpetual licenses only and entitles you to one year of free updates, tested phone firmware, security updates and the smartphone clients (which are licensed by year only and require valid maintenance). It also includes new versions (eg 14 to 15). Late maintenance renewal is not available. 3CX allows a 90 days grace period after which users can be switched to an annual license.