• Best customer service I've ever had with a utility related issue. Great job.

    - Carrie from Premier Luxury Suites, Chicago

  • We are very satisfied with the services that Access One
    provides. We really appreciate it!

    - Connie from People's Home Equity, Inc.

  • It was a pleasure working with Access One. From start to finish, everyone was very
    helpful. The follow-ups were wonderful.

    - Karen from Filmquest Group

  • The installation was done professionally, even after our working hours. We were able to finish the job for that day with the help of your technician.

    - Krystyna from Testing Service Corporation

  • Always pleased with Access One.

    - Sheryl from Mitsui Hightec

  • Your service is superb.

    - Ariel from Dukane/Precast

  • Very good communication and follow-up - much appreciated!

    - Linda from Colliers International

  • Excellent work. Prompt response.

    - Steve from UtilIT

  • The issue was resolved quickly and efficiently.

    - Dearborn Partners

  • Repair tech was very clear as far as resolution and excellent at following up.

    - Greta from Glenview State Bank

  • A's on the report card... Access One is my favorite provider to work with I wish the hosted VoIP was available here in Northern CA.

    - Harold from IT Services

  • The customer service was great.

    - Jonny from Clear Channel

CUSTOMER CARE: 800.804.8333
Voice Services

SIP Trunking

"Our move to a new office space presented the chance to audit our services and Access One proposed a complete upgrade of products that would increase our productivity. All things related to the transition were clearly communicated and went as planned. We relied on Access One to pull through in our time of need and they did just that."

-Rick Bodnick, BDO Management

Contact Us

SIP Trunking

Techconnect Technology Partner

Access One is a Technology Partner and Certified SIP Provider through the Shoretel TechConnect Program. Click to view the profile on Shoretel’s TechConnect marketplace here: 


With Access One’s Session Initiation Protocol Trunking service, your business now has access to both the advanced features you need and the optimized bandwidth utilization to help you reach a new level of efficiency. By integrating voice and data onto one circuit and utilizing dynamic allocation, you are able to use your bandwidth to its fullest capacity—regardless of the time of day or the number of phone lines in use.

For businesses with IP PBX’s, SIP Trunking offers seamless voice and data communications and cost-savings by utilizing dedicated Internet for voice calls. Through the development of a strong relationship, Access One will provide you with a solution customized to your business and infrastructure.


  • Cut your business’ telecommunications costs by combining your voice and data services on one single circuit
  • With dynamic allocation, you can optimize your utilization of voice lines and data bandwidth
  • Achieve scalable and secure voice and data service

Features and Options

From Failsafe Routing to Virtual Exchange, we can customize a solution to meet your demands. We can also help you choose the service that matches your preferred means of delivery – copper coax fiber from 1.5Mb to 1Gb. Fully managed router options are available as well.

VoIP Services

With Access One, installation of VoIP services is quick and simple, and the infrastructure is easily scalable as your needs evolve. The latest VoIP technology delivers improved clarity of voice and reliable connectivity, and users can integrate computer applications such as email and web conferencing. Customized SIP trunking options provide native SIP services as well as PRI and Analog emulation.