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Mobile Health

Mobile Health Connectivity

Since 2012, West Networks has been assisting Mobile Operations in providing communities with access to life-saving technology. Visit our case studies and discover how to better serve your community through our WIRELESS SD-WAN CONNECTIVITY PACKAGES.

The Challenge

Connectivity for Mobile Operations is uniquely challenging because the demand for reliable access to internal business applications and resources has become a standard expectation. Many operators try to use standard solutions, such as hot-spots or cellular routers with IPSec VPN, which aren’t reliable enough due to the unpredictable nature of cellular. ​

The complaints we hear constantly are that the operators can’t access these services reliably, so they switch to paper or they’ll install a server on the mobile unit that synchronizes with the main hospital when the vehicle returns. These solutions slow down service, create unnecessary workflows, and add to an already challenging demographic.

SpeedFusion SD-WAN: Speed and Reliability

SpeedFusion SD-WAN combines the bandwidth of multiple connections into a VPN tunnel with the speed and reliability of all links combined. In order to implement SpeedFusion SD-WAN, we need two peers: a central aggregator connected to a highly reliable Internet source (i.e. hospital or data center) and the remote peer that has multiple WANs to be bonded. The aggregator, a Peplink Balance Router, is used to receive VPN traffic from the multiple Internet connections of the remote peer router.


Bonding increases reliability and security by encrypting all WANs, splitting traffic over those WANs and centralizing your security architecture. If you previously thought a VPN was secure, imagine a VPN that splits the data over several WANs. Basically, only a small piece of each 256bit AES encrypted packet flows through each WAN. For more added security when setting up remote sites, with Peplink SpeedFusion VPN, we set “deny all in / deny all out” as their default firewall rule. This allows all the traffic from the mobile clinic to flow through the hospital’s firewall making sure security policies are enforced.

Making It Happen: Getting Key Players On Board

The mobile sponsor is going to be the best person to push the project forward and schedule the meetings with the rest of the departments. We need to meet with IT security to demonstrate how we maintain security and gain their approval for the devices and deployment strategy. Network support will help setup the IP addresses and work with the equipment on the bus. Medical equipment vendors also need to be involved so we can show them the design and make sure their equipment is programmed to work properly. Once all the teams are connected, we can determine the appropriate equipment to fulfill your requirements. From there, we plan the deployment and configuration.

Network Architecture

The Peplink Balance aggregator will need to be installed where it has routable access to the resources that the clinicians are trying to reach. It needs to have a WAN IP which can be either a Public IP or a NAT’d Private IP with port forwarding. Ports UDP 4500 and TCP 32015 are required for VPN connectivity. The Peplink MAX or EPX peer can support from 1 to 30 SIM cards depending on the bandwidth and redundancy requirements which will be determined during the design phase. The SIM cards are typically provided by the hospital; however, we can help you acquire SIM cards from any carrier.


Bonding increases reliability and security by encrypting all WANs, splitting traffic over those WANs and centralizing your security architecture. If you previously thought a VPN was secure, imagine a VPN that splits the data over several WANs. Basically, only a small piece of each 256bit AES encrypted packet flows through each WAN. For more added security when setting up remote sites, with Peplink SpeedFusion VPN, we set “deny all in / deny all out” as their default firewall rule. This allows all the traffic from the mobile clinic to flow through the hospital’s firewall making sure security policies are enforced.

Once the design is approved and the hardware is identified, we can schedule the deployment. If you have a vehicle manufacturer, we need their involvement. Mounting requirements, antenna design, and ventilation all need to be considered when building your vehicle. Your vehicle manufacturer will receive and install the remote peer equipment if the vehicle has not been assembled. If you are using an existing vehicle, West Networks can do an on-site installation of the antennas and hardware for you. Once the remote peer hardware is physically installed, we need to program the aggregator unit and setup the VPN.

We will work with IT to program the unit, make sure routing is working and then proceed to setup the peer unit. At this point we will need activated SIM cards with their bandwidth limits and billing cycle dates. We will program the peer router’s LAN settings, setup any wireless or network peripherals and test the VPN. If there are more advanced configurations, such as in mobile mammography units, we need to make sure their technicians are available to setup the LAN and confirm their data is sending to the servers. If you would like to learn more about Mobile Operations and SD-WAN, please reach out and schedule a demo or initial design discussion.