Who We Are

About Call One Group

Combining technical innovation with direct, human-led engineering support

Our Story

High-Capacity Voice Solutions Without Compromise

At Call One Group we set out to combine high-performance VoIP technology with an accessible, engineering-driven approach.

We deal exclusively in high-capacity, high-volume call traffic, optimizing routing, visibility, and continuous performance for wholesale carriers and service providers.

Full Compliance

  • FCC Licensed Carrier
  • Operating Company Number (OCN)
  • STIR/SHAKEN Compliance
  • RoboCall Mitigation Database
Why Us

Why Carriers Partner With Us

Dedicated Engineers

Customer service is our backbone. You deal directly with friendly technical specialists who understand routing protocols.

Direct Interconnects

We terminate through direct interconnects and Tier-1 partners, ensuring low PDD and stable ASR.

24/7 Monitoring

Our Network Operations Center continuously monitors traffic parameters, before they impact your business.