VOIP vs Traditional Phone Systems: Which is Right for Your Business?

For most businesses, the humble phone system is still the backbone of customer communication. But the way we make and receive calls has changed dramatically over the last decade. Today, companies are forced to update, the traditional PSTN is being switched off, moving from old copper wires to Internet Protocol (IP) by January 31, 2027.

If you have a traditional phone system with standard phone lines, time is ticking. 

What is VOIP?

VOIP allows you to make phone calls using the internet rather than copper phone lines. Calls can be made through desk phones, laptops, tablets, or mobile devices—anywhere with an internet connection.

Traditional systems, by contrast, rely on physical infrastructure (ISDN or PSTN lines). But with the UK’s PSTN switch-off scheduled for 2027, many businesses are reviewing their options sooner rather than later.

The Benefits of VOIP

1. Flexibility – Take calls on mobile, laptop, or desk phone. Perfect for remote or hybrid working.
2. Scalability – Add or remove lines and users instantly, without waiting for engineers or costly installations.
3. Cost Savings – VOIP often reduces call charges drastically. 
4. Features – Call routing, voicemail to email, call recording, transcriptions, and advanced reporting are standard options.
5. Future-Proofing – As traditional systems are phased out, VOIP keeps your business ahead of the curve.

The Limitations of VOIP

• Internet Dependence – VOIP needs a stable connection (not particularly fast). Without good bandwidth or backup, call quality can suffer.

• Software Based - It's software, just like computers, if updates and settings aren't managed correctly, downtime can occour

As systems are Internet based, using IT networks to operate, IT companies are often better placed to put in reliable systems without the need for additional broadband and equipment. 

Why Some Businesses Still Use Traditional Systems

• Reliability – Traditional lines don’t depend on internet speed.

• Legacy Equipment – Businesses with large investments in existing infrastructure may be reluctant to switch.

• Limited Needs – Very small teams with simple call requirements sometimes find a traditional system adequate.

However, with the BT Openreach switch-off deadline approaching, every business will eventually need to migrate away from legacy PSTN/ISDN systems.

Which is Right for You?

There are several different VOIP solutions provided by a range of companies. WYSIWYG is a 3CX advanced authorised partner. We deploy their global solution using our experiance and expertise across Kent and Medway.