All About

One Call Networks

One Call Networks is a full-service IT Managed Security Services Provider (MSSP).

With One Call Network, you’ll have helpdesk support, server management, cloud-based service administration, telecommunication services, IT security, vendor management, and more. That’s our “One call to solve them all” approach to client service.

In the more technical sense, we’re your Managed Service Provider (MSP) and your Managed Service Security Provider (MSSP).

As an MSP, we’ll monitor and work with your IT infrastructure and/or end-user systems on a remote basis through a service agreement scaled to meet your needs.

As an MSSP, we’ll add an important level of security support like remote firewall administration, network optimization and filtering, and other security-as-a-service offerings.

Put this all together and you have a high quality, efficient, cost-effective, and reassuring level of IT service and convenience.

We’re at your side as a vested partner in your success, making sure your IT is supporting your operations in every respect all day every day. Regardless of the level of service, you sign up for, we’ll approach our relationship with you in the same way – your success is our success.

One Call Networks means One Team. One point of contact. One help desk. One amazing suite of wired and wireless technology support.

Dave Eisner

Founder

Dave brings more than 30 years of experience in information technology, beginning with hands-on system assembly and configuration before quickly advancing into troubleshooting, repair, and enterprise systems support. Over the course of his career, he has led IT departments, managed helpdesk teams, and provided strategic consulting for businesses seeking stable, secure, and efficient technology infrastructure.

In 2008, Dave founded The PC Whisperer, delivering managed IT services to businesses throughout Denver and Colorado’s Front Range. In 2019, he expanded his vision by merging the company into One Call Networks, partnering with trusted technology specialists to provide broader expertise across networking, cybersecurity, and business IT solutions.

After relocating with his family to Northern Michigan in 2022, Dave expanded One Call Networks into the region, continuing the company’s mission of delivering responsive, reliable IT support to local businesses.

Outside the office, Dave enjoys spending time with his wife and daughter exploring the country in their RV. The family recently completed a 10-month journey across 17 states, visiting many of America’s most beautiful parks and recreation areas.

Ricardo Flores

field technician

Ricardo Flores is a CompTIA A+ certified IT professional with strong experience in field service, desktop support, and hardware and software troubleshooting. He currently performs on-site diagnostics and repairs for Dell systems across business, government, and education environments, delivering next-business-day service while maintaining strict SLA compliance and high customer satisfaction standards.

Ricardo’s background includes Tier 1 and Tier 2 technical support, system installations, Microsoft 365 environments, and support of Cisco Meraki devices and basic server infrastructure.

Fluent in Spanish, he brings both technical skill and clear communication to every client interaction. His experience in both hands-on repair and customer-facing service ensures that issues are resolved efficiently while maintaining a professional and approachable experience for the businesses he supports.

Brock Potvin

Field technician

Brock Potvin brings over 11 years of hands-on experience in network engineering and enterprise telephony systems, including extensive work with Avaya platforms at Boyne Mountain Resorts. His background includes the design, installation, splicing, and optical testing of fiber networks, along with large-scale underground cabling engineering and project management. Brock has led complex infrastructure projects from planning and cable location through full implementation, ensuring reliable connectivity in demanding environments.

With eight years of experience administering Cisco Catalyst managed network equipment and recent certifications, including CompTIA Network+ (2024) and Cisco Meraki Wi-Fi training (2024), Brock combines strong technical depth with modern network expertise. His practical, field-driven approach helps clients build stable, scalable network infrastructures that support long-term business growth.

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