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About Volli

Voice infrastructure,
since 2009.

What started as Digital Telephone Alliance is now Volli — a carrier serving businesses across 50+ countries on a nationwide backbone, with U.S. engineers and a channel-first mindset.

Numbers ported
200,000+
Uptime SLA
99.99%
Countries
50+
Core products
3
A decade-plus of partnerships
Avaya Sinch Fortinet AudioCodes Intelisys Lumen
Our journey

The long arc.

Fifteen years of building what modern business voice should look like. No pivots, no buzzword chasing, just the quiet work.

2009
Founded as Digital Telephone Alliance. Mission: simplify legacy telecom for enterprise — speed, reliability, service-first.
2011
Rebranded to Volli Communications to reflect broader voice innovation vision.
2013
Partnered with Fortinet to develop FortiVoice, running on the Volli backbone.
2019
Scaled advanced SIP architecture and large-volume porting operations.
2021
Strategic alliances formed with Sinch, Lumen, Fortinet, AudioCodes.
2023
Deepened partnerships with Intelisys and Viirtue PBX; channel reach expanded.
2025
Joshua Schluep appointed president. Renewed focus on partner-first growth.
Our mission

Simplify and modernize voice infrastructure for the next generation of business.

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Ready to replace five voice vendors?

No minimums. No offshore tickets. No four layers of bureaucracy. One vendor, one bill, one support line.

Register a deal → Talk to sales
24h
Response time
99.99%
Uptime SLA
200K+
Numbers ported
50+
Countries