XO is the #1 Business VoIP Provider
- Over 1.2 million VoIP customers
- Serving 90,000+ businesses including more than 50% of the Fortune 500
- Nationwide coverage in 80% of major metropolitan markets
Managing Your Communications Can Be Easier with XO VoIP Solution
Converge all of your voice and data communications into a single, easy-to-manage IP network with XO’s business-grade VoIP, SIP Trunking and Hosted PBX services. Regardless of the size of your business, our next generation communications services can advance your business with new unified communications and collaboration applications while helping you better manage your costs.
With ultimate reliability, scalability, and reach, our voice and data services are delivered with a commitment to customer service and your bottom line in mind.
Voice & Data Bundle
- XO IP Flex: A converged VoIP service provides local and long distance voice, Internet access, web hosting, and the XO Anywhere Package for unified communications.
Voice & Data + VPN Bundle
- XO IP Flex with VPN: Integrated local, long distance, data networking, Internet services, and XO Anywhere on a secure, private network.
SIP Trunking Services
- SIP Trunking: Combines voice, data and Internet over an IP connection using your IP-PBX phone system.
- Enterprise SIP Trunking: Deploy and centrally manage VoIP services across multiple locations over your own private IP network by leveraging a centralized IP-PBX to deliver service to all your locations.
Hosted PBX
- Hosted PBX: An end-to-end hosted solution giving you all the benefits of VoIP at pay per seat pricing without the capital expense of buying your PBX or phones.
What You Can Expect From XO VoIP, SIP Trunking or Hosted PBX Services:
SIMPLIFY when you buy local and long distance voice, dedicated Internet access and private data networking from a single provider
SAVE when you share minutes across multiple sites or reduce capex when you choose our hosted PBX service
STREAMLINE when you use a single provider for your voice and data service needs nationwide
INCREASE PRODUCTIVITY when you get all the benefits of VoIP without having to upgrade your phone system
Hear What XO Customers have to say, including our first IP Flex VoIP services business customer
XO IP Network Map
XO operates an advanced nationwide IP network with a terabit-capable routing core that is designed to deliver maximum coverage, performance and scalability.















