Transform Your Network with XO Business VoIP & SIP Trunking Services
XO VoIP, SIP trunking and cloud communications services help you simplify, streamline and reduce costs by converging voice and data communications over a single IP network infrastructure. Our services can work with your existing infrastructure and provide your organization with new VoIP capabilities or they can be used to help you migrate to an all IP network architecture utilizing an enterprise SIP Trunking solution to get the most of your latest IP-PBX investment.
XO Communications consistently places as one of the top business VoIP providers, according to recent reports from industry research firms such as Frost and Sullivan and Infonetics. XO Communications VoIP and SIP Trunking serve 2,700 cities, 80% of the major metropolitan markets, and more than 1 million business VoIP users.
Benefits
- Reduce total cost of ownership – extend the life your existing PBX, or use our centralized enterprise SIP trunking solution and eliminate local voice circuits and PBX equipment
- Simplify management – centralize and streamline how you deliver and manage voice services across your enterprise
- Increase productivity – utilize our managed solutions to free up IT resources so your organization focus on your company’s core business
- Flexibility and scalability – create a VoIP platform that can support your company’s growth through and is flexible to add future applications
- Manage multiple locations – connect your locations with our extensive reach and nationwide coverage in all 50 states for distributed enterprises like financial services and retail companies
- Predictable monthly pricing – with our bundled, flat-rate and communications-as-a-service offering, you know exactly how much you will pay each month
- Get business continuity – our services can help ensure your business can continue to communicate with customers in the event of a major disruption
Find the right VoIP and SIP trunking service your business
While many providers have a one-size-fits all approach, XO Communications will help you design and build a solution around your unique needs.
- XO IP Flex: Our award-winning and industry-leading VoIP service that works with your existing key system or PBX providing local and long distance, Internet service and hosting services. This solution can support businesses with one location or multiple locations
- XO IP Flex with VPN: Our converged VoIP and wide area networking solution, which is ideal for businesses with multiple locations
- XO SIP: Our SIP trunking service for businesses with just one location or multiple locations that combines voice and data traffic onto a single network, making data delivery and network management more efficient
- XO Enterprise SIP: Our innovative SIP trunking solution for distributed enterprises with dozens or even thousands of locations that want to simplify, streamline and reduce the costs of delivering and managing voice services. Eliminate local voice circuits, reduce you IP-PBX capital expenditures, and share calling capacity across your locations
- XO Enterprise Cloud Communications: Our hosted IP-PBX solution that provides IP telephony features, local and long distance voice, network services, enterprise-wide HD voice and video, and IP phone sets in a communications as a service, per-user pricing model. This solution is ideal for multi-location enterprises that want to simplify the management of voice services across their business and reduce both capital expenditures and operating costs
- XO Anywhere: Our mobility feature available with XO IP Flex and XO IP Flex with VPN that enables remote and on-the-go to make and receive phone calls anytime, from anywhere as if they were in the office
- Business VoIP Resources
- Watch business VoIP videos, read articles and download whitepapers at XO's Enterprise Communications Central.
North American Business VoIP Services Leadership Scorecard, 2011



















