The transfer of information required for RPM to work is potentially a long and complicated process and consists of multiple transfers. Firstly, data must be collected and uploaded from the patient’s device. If this device is on a mobile network, the data must then travel through that network provider’s infrastructure and out onto the internet before ending up in the service providers network, probably via multiple data centers and the RPM platform network. 

If any of these hops is interrupted, or an outage occurs at any of the stops on this journey, the data might be delayed in getting to its destination. Mobile networks are not guaranteed to be always available. This is seen as a big enough problem in cases where mobile users cannot access Instagram for an hour or two, but when it is genuinely a matter of life and death, as it could be for a patient, data must be delivered reliably and on time.