RingOffice SIP (Session Initiation Protocol) Trunks

Our geo-redundant voice network is designed for business class service and monitored 24/7. It has built-in security safeguards and emergency failover features to ensure your valuable customer calls are never missed.


Right-size your communication needs by adding capacity on-demand ​and managing features and routing for multiple branches, lines and services as needed to better manage growth.


Running on carrier grade infrastructure, RingOffice Hosted PBX can easily grow and scale with your business. Whether you are looking to add users or locations in Canada, USA or around the world, RingOffice has got you covered!



Gain ultimate control and flexibility with 24/7 access to make changes through a robust online portal. Whether you are making an on-the-fly routing change or programming complex routing with IVRs and timing rules, our portal gives you all the tools to get the job done!​




Our Features

RingOffice SIP Trunks come well-equipped with a rich feature set that enables you to customize the service to the specific needs of your business. We offer a wide range of features that can be tailored to your business and a variety of calling plans to choose from, so you can find the perfect fit for your business.

With RingOffice SIP Trunks, you can add channels/lines and phone numbers as needed, so you can easily share resources and never have to worry about paying for unneeded redundant capacity. If your business happens to grow, RingOffice SIP Trunks can scale up with you, so you never have to worry about being left behind.


RingOffice SIP Trunks are compatible with all standard SIP based VoIP phone systems and gateways. Our supported vendors include such well known names as 3CX, Asterisk, FreePBX, Grandstream, Patton, Switchvox, Cisco, Sangoma, Panasonic, Mitel, Yeastar, Poly, Yealink, snom and many more.

Total Control

RingOffice offers a variety of features to help customize the way your business communicates with customers. RingOffice provides businesses with the ability to manage call flows based on time of day, virtual numbers, and other smart rules that enable businesses to be accessible to customers from virtually anywhere at anytime.

Failover Options

RingOffice provides multiple failover options which are fully configurable through our customer portal. Both time of day and failover call routing can be setup at each trunk level so that in the event of an outage on-site, calls can be redirected elsewhere. Failover Auto Attendants and Voicemail to Email are also available to take over as needed by the business.

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SIP Trunk Pricing Plans

Nobody likes surprises or hidden fees so we made our pricing simple and included all of the most commonly used business features


$5/mo/channel + 2c/min NA

Low monthly + usage billing. Great for long distance, seasonal, overflow or backup

Most Popular



Predictable billing No surprises

Canada + USA*

$22-30/Channel/Per Mo

Predictable billing No surprises

Note:  Pricing depends on quantity of channels and contract term. Certain terms and minimums may apply. Applicable taxes & 911 fees are extra. Contact us for more details on service plans, volume/term discounts and accurate pricing.

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+1 (647) 660-1111