Simplify Voice. Strengthen Connections.
At UNO, we make business communication simple, reliable, and cost-effective. Our SIP Solutions combine carrier-grade connectivity with hands-on service and decades of telecom experience—helping businesses modernize their phone systems without the complexity or cost of traditional carriers.
Whether you’re an enterprise looking to streamline communications or a wholesale partner seeking a dependable SIP provider, UNO delivers clear, dependable voice backed by unmatched support and industry know-how.
Experience You Can Hear
SIP isn’t just technology—it’s the backbone of every conversation your business has. Our team brings years of experience working with carriers, hosted phone systems, and enterprise clients. That means you get expert guidance, proactive monitoring, and responsive support every step of the way.
When you call UNO, you reach telecom professionals who understand your environment and resolve issues fast—no endless transfers, no cookie-cutter responses.
Smart, Reliable, and Scalable
We partner with multiple top-tier carriers to ensure reliability, flexibility, and performance for every call.
Our multi-carrier approach allows us to: >Route intelligently for the best quality and cost efficiency >Fail over seamlessly to maintain uptime >Support both domestic and international coverage
Whether you’re managing one location or a nationwide network, UNO scales to fit your business.
Lower Costs, Higher Value
By leveraging our carrier relationships, UNO passes real savings on to you.
You’ll gain the flexibility of SIP with the reliability of traditional voice—without the unnecessary cost or complexity.
Simple, transparent pricing. No hidden fees. Just dependable voice services that work the way they should.
Our Communication Services
UNO delivers a full suite of voice and SIP communication services designed to fit your needs—whether you’re an enterprise or a wholesale partner.
For Enterprises
Your customers expect every call to connect clearly and consistently. UNO provides end-to-end coverage with:
>Toll-Free Numbers – Give customers an easy, trusted way to reach your team. >Long-Distance Calling – Domestic and international reach at competitive rates. >Local Voice Services – Keep your local presence while gaining flexibility. >Global Coverage – Seamless international and domestic calling with one provider.
Every service is backed by UNO’s proactive monitoring and responsive U.S.-based support.
For Wholesale Partners
Expand your portfolio with carrier-grade SIP solutions built to support your customers and your brand.
UNO offers:
>Toll-Free Origination - Route inbound toll-free calls with reliability and transparency. >Termination Services - Efficient, high-quality call completion across networks. >DID & Local Origination - Build local presence and numbering options for your customers. >International & Domestic Coverage - Connect globally with flexible, scalable routing.
Our team makes it easy to integrate, manage, and scale—while you focus on your customers.
Customer Service That Sets Us Apart
At UNO, we don’t hide behind portals or long wait times. You’ll have direct access to our Tier-1 and Tier-2 support team, proactive network monitoring, and ongoing communication to ensure your success. We treat every account like a partnership, not a transaction.
Why UNO
>Expertise you can trust - Decades of telecom experience across SIP, hosted voice, and branded calling. >Flexible solutions - Designed for both enterprise clients and wholesale partners. >Transparent pricing - Pay only for what you need. >White-label ready - Perfect for MSPs, carriers, and resellers looking to expand. >Pair with UNOid Branded Calling - Combine verified branding with high-quality call delivery for maximum impact.
Let’s Build Better Connections
At UNO, we believe voice still matters. We help you deliver it better—simpler, smarter, and more affordable.