From Time to Time we have clients that need to use a clock in a location where Internet is not available.
Whether a new development and internet just doesn't exist yet, or a client company with very strict network limitations, your clocks can lean on Cellular networking in one of two ways.
WiFi enabled clocks can use a Hotspot from a Phone or other portable network device. An example would be a Mobile Phone set to provide a Mobile Hotspot or a Hotspot Device such as Verizon Jetpack or AT&T Nighthawk
For cabled devices, you will need a Cellular Router. There are several options available and we do have one large staffing company that is successfully using Cradlepoint with Verizon