Everphone offers "Choose your own Device" employees the opportunity to contribute to the cost of a high-quality device.
Those who prefer the iPhone "Pro" to the standard iPhone can get it, but they’ll need to contribute.
The way in which a contribution is made varies from company to company: in principle, either from net income or from gross income via deferred compensation (which may have tax advantages in given countries).
Everphone and your employer will take care of the billing.