SIP Trunking made easy.

While our service is easy to setup and a cinch to connect to your phone system it's still backed by a fully redundant infastructure. What is your business waiting for? Start taking advantage of our all-inclusive and non-restrictive service today.

Pick a plan

Simple, Affordable, Non-restrictive

Phone Numbers $4.95

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  • Quick and Easy Setup
  • Multiple Available Areas
  • Free Porting

Toll Free Numbers $5.95

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  • Quick and Easy Setup
  • Vanity Search Option
  • Free Porting


At the center of 1-VoIP is a great support staff eager to assist in any way possible. When you sign up with us, rest assured we will guide you every step of the way to get your phone system online with ease.



Set your phone lines free and eliminate pesky usage restrictions. Our trunking service allows for unlimited simultaneous calling anytime, anywhere!



As a leader in the telecom industry we understand that reliable uptime is no joke. What other provider offers less than 6 minutes of downtime per year? 1-VoIP's four seperate locations provide full redundancy to you with our no-hassle VoIP trunking.



We believe in long-lasting relationships with our customers. Our customers' loyalty allow us to pass along the savings directly to you.



Geographically diverse facilities provide quadruple redundancy and a 100% US based support staff available 24/7. We know what you need in a VoIP provider. Our refined setup and years of experience we are committed to your success.


We love to talk. If you would like assistance or to complete your order over the phone, please contact our 100% US Based support team.

or get your free quote

We connect with virtually any SIP 2.0 capable phone system. The following is a partial list of vendors certified by 1-VoIP.

  • 3CX PBX Logo
    Asterisk PBX Logo
    Elastix PBX Logo
    Trixbox PBX Logo
    Digium PBX Logo
    FreePBX PBX Logo

About 1-VoIP

1-VoIP's owners have a telecom background spanning over 40 years of experience. After transitioning to VoIP in 2005, the company built a solid reputation of reliability and customer satisfaction. Paired with excellent customer service and technical support, 1-VoIP established itself as a dominant name in the VoIP industry. We are currently one of the highest customer reviewed VoIP providers and have received the highest quality ratings in all categories. At 1-VoIP, we believe long lasting relationships with our customers are key to our mutual success.

Contact Us
(888) 369-8647

International: +1 (405) 694-4740

Fax: (866) 387-0948