Thank you for contacting CPAP Supply USA.com.
Our website CPAP Supply USA.com is an excellent source of information.
Ramp refers to a feature on most CPAPs, that allow the pressure to be decrease for a preset time. The pressure will go back up to the pressrue that is required or preset to. This allow new CPAP users to adjust to the pressure more comfortably.
As to full ervice price or limited service price, tht does not apply to our CPAP customers. When you purchase fro CPAP SupplyUSA you have access to clinical support at all times. You do not have to purchase this service.
Please let me know if you need more help.
Debbie Shirley,RRT