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Keep Your Phone System. Upgrade Your Connectivity.

Replace Outdated PRIs with flexible SIP trunking. Better reliability, lower costs, same equipment. 

Ready to Upgrade How You Connect?

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If your PBX still works, you shouldn’t have to replace it just to reduce costs or add capacity. Legacy PRI circuits cost too much, take weeks to provision, and can’t flex when your business changes.

DQE’s SIP Trunking connects your existing phone system to our fiber network, delivering better call quality and instant scalability without changing phones or retraining staff. Keep what works. Upgrade what doesn’t. Get support from engineers who pick up the phone.

What Makes DQE Reliably Different

Connectivity you can count on, backed by people you can reach.

Use Existing Equipment 

Works with Cisco, Avaya, Mitel, Microsoft, and virtually any IP-enabled PBX. No forklift upgrades, no equipment refresh, no user retraining required.

Lower Costs Than PRIs

Eliminate per-channel charges and expensive PRI circuits. Pay only for concurrent calls you actually use.

Instant Scalability

Add capacity online in minutes, so you don’t wait weeks for provisioning.

Geographic Flexibility

Add local or toll-free numbers in any area code. Support remote offices without deploying new equipment. Provide local presence anywhere you do business.

Built-In Redundancy

Primary and backup SIP connections with automatic failover, so calls get through even during circuit failures or fiber cuts.

Who We Serve

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Growing Businesses

Keep your PBX, lower your costs, and get better reliability than legacy PRI circuits.

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Enterprises And Institutions

Connect multiple locations to your existing phone system and scale capacity instantly.

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Manufacturing

Add sites and capacity to existing PBX systems without disrupting production operations.

Why DQE

When Your Customers Call, We Make Sure You Answer.

Your phone system is the front door to your business. When it goes down, revenue stops. DQE’s SIP Trunking includes automatic failover, diverse routing, and 24/7 monitoring by Pennsylvania-based engineers who respond in minutes, not hours. We’ve been connecting businesses to fiber networks for decades. We know what it takes to keep your phones working when it matters most.

View Our NETWORK

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Serving Areas Across Pennsylvania, West Virginia, and Maryland

Our fiber network was built to utility standards and designed to grow with the region. From downtown Pittsburgh to surrounding communities, we connect businesses with reliable infrastructure that doesn’t quit. Enter your address to see if your site is already covered — and if it’s not, let’s talk about building to you.

SEARCH THE NETWORK

Additional Resources

DQE in the News

DQE Communications CEO Mike Sicoli Featured in Inv…

PITTSBURGH, PA — DQE Communications CEO Mike Sicoli was featured in Invest: Pittsburgh 3rd Edition, a regional busines…

DQE in the News

DQE Communications Announces Brand Refresh and Exp…

PITTSBURGH, January 29, 2025 – DQE Communications, a leading, regional business connectivity solutions provider, today…

DQE in the News

Penn State and Carnegie Mellon researchers track g…

In many cities, aging infrastructure, climate change, and urban geohazards – such as flooding, sewer leaks, and landsl…

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