By 2025, traditional copper phone lines (the PSTN or Public Switched Telephone Network) will become obsolete as they are officially shut off. If your business still relies on a legacy phone lines, this change could disrupt your operations—unless you act now.
Here is a guide to understanding what the 2025 PSTN shutoff means and why upgrading your Avaya phone system before the deadline is critical.
What is the 2025 PSTN Shutoff?
The PSTN (Public Switched Telephone Network) is the analog phone network that has been the backbone of global voice communication for over 115 years. It uses copper wires and circuit-switching technology to enable landline calls.
As it has aged, the PSTN has become cost prohibitive to maintain. There have been struggles over the past 15 years to keep up with modern telecom needs, and this legacy network has been gradually replaced by internet-based systems like VoIP (Voice over Internet Protocol). Telecom providers worldwide are phasing out PSTN services with the final shutoff planned for 2025, forcing businesses to switch to digital or IP solutions.
Why Does This Matter for Small Businesses?
For small businesses and IT managers, this change goes beyond just a disconnected phone line. Here’s why the PSTN shutoff is so important:
Service Disruption: If you’re still on a legacy phone system and using PSTN-dependent technology, you risk losing connectivity when the network shuts down.
Compatibility Issues: Legacy systems often aren’t compatible with modern communication tools, making upgrades inevitable.
Rising Costs: Maintenance costs for PSTN and related equipment are steadily increasing as these systems age.
Lack of Features: Compared to modern solutions, PSTN systems lack advanced features like text, E911 and remote work capabilities.
Is Your Avaya Phone System PSTN-Dependent?
Avaya has been a leading provider of PBX systems and unified communication tools for years. While most older Avaya systems still rely on PSTN connectivity for voice services, they can also be easily upgraded to digital or IP.
Some common signs your Avaya system might need an upgrade ahead of the shutoff:
- It’s 5-15 years old and hasn’t been updated for digital or IP support.
- It uses traditional landlines instead of internet-based connectivity.
- It doesn’t offer features like text, video calling, call analytics, or integration with cloud-based tools.
If you’re unsure about your specific setup, consulting a telecom expert is a good starting point.
Benefits of Upgrading Your Avaya Phone System
Upgrading your current phone system isn’t just about surviving the PSTN shutoff—it’s an opportunity to take your business productivity to the next level. Here’s what you gain by upgrading:
1. Future-Proof Technology
Upgrading ensures your business stays ahead of the curve by transitioning to reliable, hybrid-based phone systems that won’t be affected by PSTN closure.
2. Advanced Features
Upgrading your Avaya phone system offer functionalities such as:
- Cellular integration for remote work.
- Call recording and analytics for better decision-making.
- Integration with business software like CRMs and ERPs.
These tools help businesses improve collaboration and customer service.
3. Cost Savings
Avaya phone systems with IP trunks cost less than PSTN in the long run. Benefits include:
- Lower call rates and no charges for long distance calling.
- Unlimited monthly phone service and text.
- Scalability that allows you to add or reduce lines as needed, paying only for what you use.
Real-World Case Study
Company: GreenThumb Landscapes, a small landscaping business employing 20 people.
Challenge: GreenThumb relied solely on a legacy Avaya PBX and PSTN trunks for customer calls and scheduling. With limited lines and dropped calls, they struggled to manage calls effectively during their busiest seasons.
Solution: The company upgraded to Avaya IP Office, a Hybrid platform offering unlimited lines and calling, mobile app support, and integration with their scheduling software. Within 2 months, they reduced missed customer calls by 40% and cut their phone expenses by 25%.
This success story demonstrates how upgrading can solve existing challenges while preparing a business for the future.
Take Action Now Before It’s Too Late
The 2025 PSTN shutoff isn’t just a technical change—it’s a call to modernize your communication infrastructure. By upgrading your Avaya phone system now, you can avoid service disruptions, enhance productivity, and save on long-term costs.
Don’t wait until the last minute. Assess your system today, plan your transition, and reap the benefits of modern business communication.
Need help getting started? Contact one of our telecom experts to discuss the best options for your business at 844.593.3965 or sales@advcomsol.com.
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