People sitting at a conference table, one man is leading the call.


PRI Trunks

Our PRI Trunks offers advanced features to ensure that your business is scalable and efficient.


With 6 to 23 channels per trunk


Optimizes IP PBX investment


Great calling features

Dedicated access for your PBX's

Comcast Business PRI Trunks provides a physical connection from your PBX to the largest VoIP network in the nation — the Comcast network. It allows you to manage costs by leveraging your existing PBX system, maintain business continuity when disaster strikes, and maximizes your phone capabilities over our private IP network. If you are looking to grow your business, the reliability and scalability of Comcast Business PRI Trunks make it the right solution.

chart demonstrating Comcast Business PRI Trunking

PRI Trunks features:

Destination Unreachable Automatically reroute incoming calls to an alternate trunk group in case of a natural disaster or power outage.
Direct Inward Dial (DID) Assign your employees a direct dial number for their convenience.
Direct Outward Dial (DOD) Users on the PBX can place calls to outside lines without a switchboard attendant.
Call Detail Records (CDR) Download detailed call records.
Business voice continuity Phone calls can be routed between networks on a call-by-call basis providing seamless service during network connection issues.
Security Voice services are prioritized over all other traffic and all network equipment is secured by 2 layers of authentication.
International calling Dial and speak; no long PINs to enter, just enter the phone number. Get billed only for what you use every month.

How it works

A trunk is a dedicated connection that links the PBX to a phone service provider, who in turn links to the public switched telephone network (PSTN). Not too long ago, that provider was a traditional phone company offering traditional phone service. But now it can be an Internet phone company, offering VoIP services like Comcast Business PRI Trunks. The service allows you to make and receive calls and comes with disaster recovery features that ensure you never miss a call.