Make the most of your PBX equipment and your connection 

Our trunk-based service gives you a dedicated physical PRI (Primary Rate Interface) connection from your onsite PBX to the Comcast private network. For cost management, call continuity, and Quality of Service (QoS). 

Simple, affordable, reliable: a PRI phone solution to count on

Already made the investment in PBX equipment? Comcast Business PRI Trunks is an easy-to-implement solution to maximize your system and its capabilities.  A cost-effective connection, it can reduce voice-line spend by letting multiple employees share 23 channels per trunk, supporting up to 184 calls at a time. Plus, with 24/7 monitoring and dedicated support via our network operations center, it’s an ideal choice. 

Quality + security

Prioritizes voice services over other traffic and uses 2 layers of authentication to secure the network


Lets you purchase full and fractional PRIs as needed, while leveraging your capital investment 

Call continuity

Allows calls to be routed between networks on a call-by-call basis, for continued service during a disruption 


PRI phone system basics you need

Do a lot of business nationwide? We take care of your calling needs. Our PRI trunking solution comes with a total of 4,600 domestic long-distance minutes (200 minutes per channel). Plus unlimited local and intra-LATA (local access and transport area) calling, as well as other features. 


When calls are crucial

Some industries, like financial services, depend on high-availability features and digital support included with our PRI phone service. 


Meeting your needs for more

Need more in the way of connectivity and communications? Comcast Business has you covered, with solutions that include Internet, phone, mobile, and TV services. 

To start, get reliably fast Business Internet with speeds up to 1.25 Gbps. Then choose from By the Gig and Unlimited data options as well as the latest mobile devices for team members. 

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The engine powering our solutions — and your business

More businesses rely on Comcast Business than on any other provider. Our solutions run on the largest converged IP broadband network in the nation 
Restrictions apply. Not available in all areas. Limited to Comcast Business PRI Trunks Voice service. Minimum term agreement required. Equipment, taxes and fees extra, and subject to change. If there is a power outage or network issue, calling, including calls to 911, may be unavailable. © 2024 Comcast. All rights reserved.