Which device should you install that will give your mobile users secure remote access to the company servers through the public internet?

Wireless router is the device that is used to connect the mobile devices with remote server through public internet.

Explanation:

As we know that, mobile users are the users those have wireless devices. These devices may include smartphones, laptops and tablets. These users can move anywhere freely along with these devices.

As I mention that, These devices are wireless they can be connected to the mobile network through GSM module and connected to WiFi or wireless internet through wireless routers.

These wireless routers work as wireless access point to provide the internet facility to the mobiles devices to connect with them remote servers.