SIP Trunking

NUSO SIP Trunking offers significant cost savings while enabling enhanced customization and flexibility. Connect your legacy phone system to modern tools and features.

How SIP Trunking Can Help Your Organization

Although an important step, transitioning from POTS lines and legacy PBX can be a complex situation for many companies. Our technical team simplifies the SIP transformation by designing architectural frameworks and equipment configurations based on the customer’s specific requirements.

As a result, organizations can eliminate their need for expensive PRI/T1 lines while taking advantage of our world-class call network efficiency.

Our SIP Trunking solutions offer several benefits including built-in failover, strong return on investment, and flexible calling plans. These capabilities combined with our expertise in creating SIP service infrastructure helps our customers stay competitive in an ever-changing market.


  • Cloud Attendant and Voicemail
  • Reliable Phone without fully updating your current system
  • Even if your internet goes down, you’ll still have internal office communication
  • Flexible call plans
  • Connect with NUSO Unified Communications (UCaaS)

Phone Systems On Our Network

  • Avaya
  • NEC
  • Nortel
  • 3CX


Simplified IT – Less Hardware and Maintenance

Significant Savings – Save Up to 70%

Scale for Growth and Busy Seasons

Fraud Monitoring

NUSO delivers real-time fraud alerts against parameters set for: concurrent calls, calls per minute, total calls per day, and call duration.

Cloud Attendant monitors every call in real-time, creating a risk score for each individual call. Relevant details are captured to enable operations teams to drill down into potentially fraudulent calls.

NUSO Cloud Attendant and Cloud Voicemail are engineered to enhance the reliability and safety of telephone communications.

Our SIP Trunking service provides the simplicity and flexibility. It’s scalable, easy and requires less time to implement and delivers real-time sessions.

Secured, Scalable, and Trusted

Conversations are vital for every business. NUSO’s SIP Trunking helps you improve customer engagement. Our SIP platform allows for fast and scalable channel allocation. Using our large, native network, we provide easy, simple solutions for wholesalers and enterprises.

Leverageable Features

Leverage local, long distance and toll-free calling through a single connection. E911, CNAM, CID, directory listing and more are all available.

Three Ways to Connect

Connect via public internet, private networks or through our partner carriers.

Transparent Pricing

Transparent pricing with low per minute rates and bundled minute options.

Analyze Your Business

With detailed reporting features, you can quickly understand capacity needs. Scale up for business expansion or reduce service for off-peak or seasonal businesses. NUSO’s API and our purpose-built platform allow for easy provisioning, turn up and management. Our team is prepared to help.

Sign up to become an Authorized Partner today!

All partners get their own Channel Account Manager who works exclusively with them to learn their business offering full support.

Find an Authorized Partner to get NUSO services

Find an Authorized Partner to Get NUSO Services Today! Contact us today and we’ll connect you with one of our Authorized Partners