IP Voice (Flex)

  • Reliable, Business-Grade Converged Voice and Data Communications

    XO IP Flex is a converged Voice over IP (VoIP) and data solution that gives you flexibility, simplicity and value.   Bundle all of your voice and data communications into one service from one provider on one access circuit.  XO IP Flex includes:

    Consistently named among the top business VoIP providers by research firms like Infonetics and Frost & Sullivan, XO Communications’ VoIP nationwide footprint covers 2,700 cities across the US and nearly every state.

    XO IP Flex - The Proven & Cost-Effective Choice for Business

    Most widely deployed business-class VoIP Service:  XO IP Flex has more than 1.5 million end users, making it one of the most widely deployed business-class VoIP service bundles for small and medium-sized businesses and large enterprises with distributed locations - like retail and restaurant chains and financial services companies.

    Leverage existing investments and keep costs down:  Because XO IP Flex can work with your existing analog phone system; you can avoid additional equipment expenditures. 

    Flexible port speeds:  XO IP Flex is available in a variety of port speeds from 1.5 Mbps to 100 Mbps. 

    Maximum voice quality:  Dynamic bandwidth allocation gives you maximum voice call quality while simultaneously optimizing Internet access speeds when voice lines are not being used.

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    855.339.4417

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  • Standard Features

    Voice Features

    • Unlimited calls:   Unlimited local calling and unlimited FREE site-to-site calling between your XO IP Flex, XO IP Flex with VPN, or and XO SIP locations
    • One Toll-free number:  Make it easier for customers to get in touch
    • Variety of Calling plan options
    • Robust voice call features: 
      • Caller ID name, number, or line block
      • Call waiting, call forwarding and call return 
      • Three-way calling
      • Voicemail to email
      • Call hold, pick-up and transfer
      • Last number redial
      • Do not disturb
      • Call acceptance and rejection options
    • Call management features: 
      • Inbound call routing
      • Hunt groups (sequential, circular, uniform, simultaneous)
      • Direct inward dialing extensions (DIDs)
      • Direct outward dialing (DOD) and 2-way DID trunks
    • Easy administration: Make changes to your voice features through XO's web-based online feature management portal

    Data Features

    • Dedicated Internet access:  Reliable, high-speed connectivity and guaranteed bandwidth
    • Web basics hosting package: Create a website and send/receive email.  Complimentary junk mail and virus filtering included

    Optional Features

    • XO WorkTime  Mobile VoIP app that lets you work from anywhere as if you were in the office
    • Auto attendant: Field calls and deliver them to the right destination
    • Business call center:  Easily set up technical assistance lines, customer support numbers, or order-taking centers
    • Voice Virtual Private Network (VPN): Configure private dial plans for on-net call routing across multiple locations
    • Automatic call routing: Ensure business continuity by automatically redirecting an incoming call to an alternate number
    • Verified and non-verified account codes: Keep tabs on long-distance charges while offering flexible calling options
    • Additional voice features:
      • Additional DIDs in blocks of 20 and 100
      • Additional toll-free numbers
      • Conferencing services
      • Directory assistance
      • International outbound calling
    • Advanced web hosting plans:  Packages that scale to meet your growing needs







  • "When XO first approached us in 2005 about being the first customer of IP Flex we were very intrigued.  We have stayed with XO ever since because, as we have evaluated other providers on an intermittent basis, we have found that XO has continued to push the envelope both in the service they provide in voice over IP and also in the cost at which they provide that service."

    Mike Rosenbaum, CEO, Catalyst IT Services