The UK is phasing out traditional phone lines by January 2027. If your business hasn’t switched to a VoIP system (Voice over Internet Protocol) yet, now’s the time to act. Leading VoIP providers offer a range of solutions tailored for UK SMEs, focusing on cost-effective, scalable, and feature-rich communication. With the PSTN switch-off approaching, UK SMEs need to act quickly to stay competitive and compliant. VoIP allows you to make calls over the internet, cutting costs and offering flexibility for hybrid work setups. Here’s what you need to know:
- Cost Savings: VoIP can reduce telecom expenses by up to 50%, with plans starting at £7–£12 per user per month.
- Flexibility: Use the same business number on desk phones, mobiles, or laptops, wherever you are.
- Features: Even basic plans include voicemail-to-email, call queuing, and auto-attendants.
- Number Portability: VoIP systems support number portability, so you can keep your existing phone numbers when switching providers.
- Scalability: Easily add extra lines as your business grows, without significant costs.
- Virtual Phone Numbers: Access virtual phone numbers to establish a local or international presence, transfer existing numbers, or choose memorable numbers for branding.
- Cost-Effectiveness: Many VoIP providers bundle advanced features into standard plans, making enterprise-grade tools accessible for small businesses.
- Preparation: Ensure your internet can handle VoIP by testing speed, latency, and jitter.
- PSTN Switch-Off: Audit devices like alarms and EPOS systems that rely on old phone lines and upgrade them.
Switching to VoIP is no longer optional for UK businesses – it’s a must. Read on to learn how to choose the right system for your needs.
Identifying Your Business Communication Requirements
Matching your VoIP system to your business operations starts with understanding your communication needs. VoIP providers offer different features, so it’s important to compare options to find the best fit for your business. Consider how your team communicates internally and externally, the volume of calls, and whether you need video conferencing, instant messaging, or integration with CRM tools. Also, think about scalability will your chosen system grow with your business? Advanced VoIP features, such as AI-driven tools and analytics, are increasingly important for UK SMEs as they adapt to digital transformation, and a comprehensive guide to buying a VoIP system for your business can help structure this assessment.
Calculating Team Size and Call Volume
When planning VoIP capacity, focus on the number of concurrent calls rather than your total headcount. For instance, each active call requires about 100 kbps of bandwidth in both upload and download directions. If you have 20 employees but only 8 are on calls during peak times, you’ll only need to accommodate 8 simultaneous connections – not 20. Call queues are a key feature in many VoIP systems, helping manage high call volumes efficiently by organising incoming calls and ensuring no customer is left waiting too long.
To get a clear picture, review your phone logs to identify peak call times. Many VoIP systems also offer call analytics and reporting features, allowing you to track call volumes, waiting times, and customer interactions for better service and staffing decisions. Many small businesses today favour softphone apps, with 70–80% of calls made through these apps, while physical desk phones are typically reserved for specific areas like reception desks or meeting rooms. This approach not only reduces initial hardware costs but also adds flexibility.
Before committing, test your internet speed to ensure it can handle the required number of concurrent calls. But it’s not just about speed – VoIP also relies on low latency (below 150 ms) and minimal jitter for smooth, natural conversations. Additionally, your router should support Quality of Service (QoS) settings to prioritise voice traffic over regular data, ensuring uninterrupted call quality.
Planning for Remote and Mobile Workers
With hybrid and remote working now a standard practice, your VoIP system must extend beyond the office. Mobile apps and desktop softphones are key, enabling employees to make and receive calls using their business number on smartphones, tablets, or PCs – wherever they are. Integrated team chat features also support real-time collaboration, file sharing, and ongoing conversations, enhancing productivity for remote teams.
Features like presence indicators, call flipping, and voicemail-to-email can help ensure seamless communication. These tools keep remote workers connected and productive, a necessity as around 74% of small business employees now rely on mobile VoIP apps for communication.
To maintain professional audio quality, consider equipping remote staff with noise-cancelling headsets, which can be invaluable in diverse environments. A seamless customer experience is supported by unified communication tools, even for remote workers. Also, check that the mobile app integrates smoothly with web portals and desk phones, ensuring call logs and contacts stay consistently updated across all devices.
Understanding VoIP Costs and Pricing
VoIP Cost Breakdown for Small Business: Setup vs Monthly Fees
Getting a handle on VoIP costs can help you avoid unexpected expenses and make smarter decisions. Typically, VoIP pricing breaks down into two categories: upfront costs to get started and ongoing monthly fees to keep things running.
Initial Setup Costs vs Monthly Fees
One of the perks of modern VoIP is that it often reduces upfront costs by using existing devices through softphones. Many organisations adopt a mix, with 70–80% relying on softphones and keeping a few desk phones for shared spaces like reception areas or meeting rooms. If you need physical handsets, there is a wide variety of IP phones available, including models compatible with most VoIP phone systems. Basic IP desk phones cost between £40 – £100, while high-end touchscreen models range from £180 – £300.
Other initial costs to keep in mind include number porting fees (around £5–£20 per number) for transferring your existing business numbers. While many cloud-hosted providers offer free remote setup, more complex systems requiring on-site installation can cost between £100 and £500. If your network needs upgrades, Power over Ethernet (PoE) switches range from £10 – £200, and enhanced business broadband typically costs £30 – £80 per month.
VoIP phone systems are modern, digital alternatives to traditional landlines, offering flexibility and advanced features that make them ideal for replacing aging landline technology.
For ongoing costs, monthly subscription plans vary based on features:
- Entry-level plans (basic calling and voicemail): £7 – £12 per user
- Mid-tier packages (call recording, CRM integration): £12 – £25 per user
- Enterprise solutions (contact centre tools, advanced AI): £25 – £50 per user
Check whether your plan includes unlimited calls to UK mobiles, as some entry-level packages treat these as additional charges.
Hidden costs can also creep in. Studies show up to 85% of telecom invoices contain errors, leading businesses to overspend by 12–20% monthly. Watch out for fees like E911 emergency service charges, local taxes (3.5–8.5% of your bill), and early termination penalties if you switch providers mid-contract. To avoid surprises, always request an itemised quote detailing all potential fees.
These insights can help you match your VoIP investment to your business goals.
Working Out Total Cost of Ownership
Looking beyond upfront and monthly fees, you’ll need to calculate the total cost of ownership (TCO) for a more complete picture of your VoIP investment. For small businesses with 1 to 20 users, one-time setup costs typically fall between £50 and £1,000, far lower than the £2,000–£5,000 needed for traditional landline systems. Switching to VoIP could save you £400–£700 per month compared to ISDN30 line rental and PBX maintenance, but it’s vital to balance cost against reliability by avoiding purely cheap VoIP services that cut corners.
To calculate TCO accurately, start by auditing your usage patterns. Knowing exactly how many users and which features you need can prevent overspending on advanced plans you won’t fully utilise. Annual payment plans often provide discounts of 10–30% compared to paying monthly. Also, confirm your internet bandwidth can handle your call volume – if not, emergency upgrades to fibre or leased lines (starting at £199 per month) may be necessary.
Don’t overlook ongoing costs like:
- Call recording storage: £1–£3 per user per month
- CRM integration fees: Sometimes an extra £9 monthly
- International call rates: If not included in your plan
Check your provider’s “fair-use policy”, as “unlimited” plans often come with caps that could lead to extra charges. Regularly auditing invoices can also help catch billing errors before they add up.
Must-Have Features in a VoIP System
When selecting a VoIP system, you’re not just picking a phone service – you’re choosing tools that simplify operations, support your company’s growth, and improve customer experiences. Modern VoIP systems offer a wide range of VoIP features, including high-quality voice calls, the ability to make calls from any device, and quick setup so you can start making calls immediately. VoIP converts analog voice signals into digital data packets, which are transmitted over the internet and reassembled at the destination, ensuring reliable and clear communication. Many providers also offer virtual numbers, enabling businesses to establish a presence in multiple regions with extensive toll-free and local number options. Here are some key features to look for.
Scalability for Business Growth
A good VoIP system should adapt to your business needs, not limit them. Cloud-based solutions are ideal because they let you adjust user capacity instantly. This means you only pay for what you need, whether you’re onboarding a handful of new employees or scaling up significantly. Plus, you can avoid the hefty costs of traditional hardware upgrades or being locked into lengthy contracts.
Integration with Business Software
Seamless integration with platforms like Salesforce, HubSpot, Zoho, Microsoft 365, and Google Workspace can transform how you work. Leading VoIP systems integrate with popular CRM platforms such as Salesforce and HubSpot to enhance customer interactions through instant caller identification and streamlined sales processes. Tools like screen pops display customer details during calls, while click-to-dial and automatic call logging save time and effort. For instance, a UK tech firm saw a 30% boost in sales productivity using Rydal Group’s Curo IP integrated with HubSpot CRM.
Advanced Features for Better Productivity
VoIP systems come packed with features designed to make your team more efficient and deliver valuable information and insights to users. Auto-attendants and multi-level IVR (Interactive Voice Response) ensure calls reach the right department at any time, day or night, supporting seamless call routing and enhancing the overall customer experience. Call forwarding is another essential feature, allowing calls to be redirected to mobiles or other lines, ensuring you never miss important communications.
Visual voicemail is now included in many basic plans, helping users manage voicemails efficiently and stay organised. Advanced VoIP features such as AI-driven call transcription, predictive analytics, and automated customer support are shaping the future of business communications, especially as UK SMEs adapt to the PSTN switch-off and digital transformation. Call monitoring tools—including whisper, barge, and supervisor dashboards – provide oversight and analytics to help managers enhance team performance during calls.
For businesses with remote or hybrid teams, mobile twinning is a game-changer. It allows employees to use their personal devices while presenting your company number, maintaining a professional image and supporting brand identity. Memorable business phone numbers can further enhance brand recognition and consistency across all communications.
An AI receptionist acts as a smart, automated solution for handling peak times, missed calls, and efficient call routing, ensuring a professional and seamless call experience even when your business is busy or closed.
Disaster recovery features are another must-have. These redirect calls to mobiles or backup lines if your office internet goes down, ensuring you stay connected. Real-time analytics, meanwhile, help track call volumes and wait times, enabling better staffing decisions and faster issue resolution. One multi-location retail business reduced missed calls by 40% after adopting real-time analytics dashboards with Rydal Group’s Curo IP.
Integrated video conferencing is now considered an essential feature of VoIP systems, reducing the need for separate platforms and supporting collaboration between teams and clients.
“VoIP-based solutions are now the preferred option due to their flexibility, affordability, and ability to support remote work.” – Steffan Dancy, CEO, Rydal Group
These features not only improve day-to-day operations but also prepare you to evaluate reliability, security, and compliance with UK standards, especially when weighing up the pros and cons of VoIP phone systems.
Checking Reliability, Security, and UK Compliance
Once you’ve nailed down your feature requirements and budget, the next step is to ensure your VoIP system is reliable, secure, and adheres to UK regulations. Supporting customers with reliable service and seamless transitions during the switch to VoIP is essential for customer satisfaction and uninterrupted business operations. This is crucial to maintaining smooth operations and safeguarding sensitive data.
Uptime Guarantees and Internet Requirements
The performance of a VoIP system is directly linked to your internet connection. As mentioned earlier, you’ll need a minimum speed of 5 Mbps to handle calls effectively, depending on the number of concurrent users.
Unlike traditional landlines, VoIP systems are vulnerable during power outages unless you have a backup solution like an Uninterruptible Power Supply (UPS) or battery backup for your network equipment. To optimise call quality, configure your router with Quality of Service (QoS) settings to prioritise voice traffic and minimise latency. Reliable providers will also offer mobile apps or automatic call rerouting as a fallback option if your primary connection goes down.
Security Measures for Data Protection
Security is non-negotiable when it comes to VoIP. Look for systems that use SRTP (Secure Real-time Transport Protocol) for audio and TLS (Transport Layer Security) for signalling. These protocols help protect against eavesdropping and man-in-the-middle attacks. For call recordings, ensure AES-256 encryption is in place, alongside granular access controls that limit access to authorised personnel only.
“VoIP can be secure for business communications if it employs encryption protocols such as SRTP and TLS, and adheres to relevant regulations like HIPAA and PCI.” – Rydal Group
Your provider must comply with UK GDPR and store data in UK-based data centres. Since call recordings are considered personal data, you’ll need a lawful basis for recording, such as consent or legitimate interests. It’s also essential to inform callers that their conversations are being recorded. To further enhance security, enable IP address whitelisting and set spend limits to mitigate toll fraud risks.
These measures not only secure your VoIP system but also prepare you for any external network changes that could impact service continuity.
Preparing for the PSTN Switch-Off
The UK’s Public Switched Telephone Network (PSTN) is being phased out and will be fully retired by 31 January 2027, making it essential to understand the wider context of the PSTN switch-off and why VoIP is the best option. Since 5 September 2023, Openreach has implemented a “Stop Sell” policy on legacy copper products, preventing the installation of new PSTN lines.
To prepare, conduct a thorough audit of all devices relying on old phone lines. This includes emergency phones, intruder alarms, fire alarms, EPOS terminals, and building management systems. These devices will need to be upgraded to IP or 4G/5G modules. It’s wise to contact maintenance providers early, as upgrades can take up to six months. Additionally, ensure your VoIP system supports 999/112 emergency access with accurate location handling. Create a detailed resilience plan for power outages, including battery backups for users in high-risk scenarios.
Testing Support and Compatibility
After completing system security and compliance checks, the next step is ensuring your VoIP solution integrates seamlessly with your existing setup and that reliable support is available when needed. Leading VoIP providers prioritise delivering a superior customer experience by offering dependable support and seamless integration, ensuring your communication tools enhance client interactions and satisfaction.
Checking Compatibility with Current Systems
Start by conducting a network audit to evaluate key metrics like upload and download speeds, latency, jitter, and packet loss. Keep in mind that each active VoIP call typically requires around 85 to 100 Kbps of bandwidth. Ensure your network meets the recommended standards for bandwidth, latency, and packet loss to maintain clear and consistent call quality. Using compatible VoIP phones and a reliable internet connection is essential for delivering high-quality voice calls within your VoIP system.
You’ll also want to check your router settings. Make sure Quality of Service (QoS) is enabled and configured to prioritise voice traffic. This can usually be done through your router’s admin panel. For desk phones, a wired Ethernet connection using CAT5e or CAT6 cables is much more reliable than Wi-Fi.
If you’re still using analogue desk phones, you can keep them in service by using Analogue Telephone Adapters (ATAs). Alternatively, consider upgrading to a VoIP phone available in various models with different features which can replace a traditional phone line and integrate seamlessly into your business communication setup. VoIP phones or softphone applications can range in price from £40 to £300. Additionally, check if your phones support Power over Ethernet (PoE). If not, you’ll need to account for separate AC power adapters for each device.
When it comes to software, list the business applications you rely on – such as CRM systems, email platforms, and collaboration tools like Microsoft Teams phone system solutions – and confirm whether the VoIP provider offers pre-built integrations or an API for custom setups. Take advantage of free trial periods (usually 7–30 days) to test call quality on your specific network before committing to a contract.
Once you’ve confirmed system compatibility, the next priority is assessing the quality of customer support.
Reviewing Customer Support Quality
Having a compatible system is only half the equation – responsive and knowledgeable customer support is just as critical. This is especially true if your team lacks technical expertise. A business phone system that doesn’t work when you need it most can cause significant disruptions.
Top VoIP providers prioritise customer experience by offering responsive, knowledgeable support teams dedicated to resolving issues quickly and efficiently.
During the trial period, test both the technical performance of the system and the responsiveness of customer support. Reach out with technical questions to gauge response times and the team’s expertise. Check their availability during peak hours to see how they handle high demand. Additionally, look at independent reviews on platforms like Google or Trustpilot to get a sense of user satisfaction with the provider’s reliability and support.
Finally, ask whether the provider assigns a dedicated implementation adviser to assist with network readiness, system setup, and staff training. Ensure the support team operates during your business hours and has a strong understanding of local infrastructure needs.
Conclusion: Choosing the Right VoIP System
Let’s bring everything together with some practical insights to help you make the best decision for your business. When choosing a VoIP system, it’s crucial to select VoIP providers that offer advanced VoIP features specifically tailored for UK SMEs. These features can help UK SMEs stay competitive and adapt to changes like the upcoming PSTN switch-off.
Key Points for Small Business Owners
Start by assessing your specific communication needs. Think about the number of users, the tools you need to integrate (like Salesforce or HubSpot), and whether your team needs mobile access. Don’t forget to test your network to ensure it can handle the volume of calls you expect.
Costs are another major factor. Look beyond the monthly fee and consider hidden expenses like voicemail add-ons or international call charges. On average, UK small businesses pay between £8–£20 per user each month for basic VoIP services. Advanced plans with features like analytics and call recording typically cost £25–£35. With the PSTN switch-off looming in January 2027, moving to VoIP is no longer optional – it’s essential.
Scalability and compatibility are also critical. Choose a system that can grow with your business and integrate seamlessly with your existing tools, without requiring a hefty investment in hardware. Prioritise providers that offer strong uptime guarantees and UK-based customer support – human help can make all the difference. Lastly, use free trial periods (usually 7 to 30 days) to test how the system performs in real-world conditions before making any commitments.
When evaluating small business phone systems, look for providers that offer valuable information, such as independent testing results, hands-on experience, and clear reasons why you should choose Rydal Comms, to support informed decision-making.
These steps will help ensure a smooth transition to VoIP, setting your business up for success.
How Rydal Group Can Help
Rydal Group’s Curo IP platform is designed to meet these needs head-on. It brings together voice, SMS, WhatsApp, and video conferencing into one easy-to-use desktop application, streamlining your communication setup. With 16 years of experience and over 5,000 clients, Rydal Group combines technical know-how with a personalised touch to deliver tailored solutions. The platform also offers virtual numbers from the UK and dozens of other countries, giving businesses extensive toll-free and local number options to support international expansion and flexible communication.
Their approach – “start small but grow large” – means you can scale up users and features as your business grows, without needing a major upfront investment. They also provide UK-based support and implementation advisers who can guide you through network readiness, system setup, and staff training. Plus, their infrastructure is built for reliability, offering 99.9999% uptime with around-the-clock monitoring to keep your business running smoothly.
The results speak for themselves. A financial services company using Curo IP with Salesforce reported a 25% increase in first-call resolution rates. Meanwhile, a retail business reduced missed calls by 40% thanks to real-time analytics and CRM integration. Steffan Dancy, CEO of Rydal Group, summarises it well:
“Choosing a cloud-based system that grows with your business and integrates with the software you already use, such as CRMs, is critical for small business success”.
FAQs
Frequently Asked Questions
What is a VoIP system and how does it work?
A VoIP system, or Voice over Internet Protocol system, is a technology that allows you to make voice calls using an internet connection instead of a traditional phone line. VoIP calls can be made from a variety of devices, such as computers, smartphones, or dedicated VoIP phones, offering flexibility for small businesses and large organizations alike. This means you can communicate from virtually anywhere with an internet connection, making VoIP systems ideal for modern business communication needs.
Are VoIP systems suitable for small business phone systems?
Yes, small business phone systems based on VoIP offer flexibility and advanced features that can help streamline communication and reduce costs. VoIP systems are scalable, making them a great choice for both growing businesses and established enterprises. They provide features like call forwarding, voicemail-to-email, and conference calling, which are especially beneficial for small businesses looking to enhance their communication capabilities.
Do I need new phones to switch to VoIP?
If you’re considering switching to a VoIP system, you might not need to invest in brand-new phones. Many VoIP phone systems are designed to work with existing hardware, so it’s worth checking if your current phones are compatible. Plus, VoIP isn’t limited to traditional phones—it can also run on devices you likely already own, such as smartphones, tablets, and PCs.
However, if your current phones don’t support VoIP, upgrading to IP phones—specifically designed for VoIP phone systems—could be a smart move. IP phones often offer enhanced features and reliability, making them a worthwhile investment for optimal performance.
What internet backup should I have for VoIP?
A reliable internet connection is crucial for consistent VoIP performance. It’s recommended to have at least 100 kbps per line to ensure smooth communication. To avoid disruptions, consider having a backup option, such as a secondary broadband line or mobile data (like 4G/5G). This backup can keep your communication running smoothly if your primary connection goes down, helping to prevent dropped calls or poor audio quality. For businesses, having this safety net is especially important to maintain operations during unexpected outages.
How do I make sure my alarms and EPOS still work after 2027?
To keep your alarms and EPOS systems running smoothly beyond 2027, it’s essential to transition them from traditional landlines to VoIP solutions ahead of the UK landline switch-off. Start by performing a technical audit to pinpoint which systems, like alarms and EPOS terminals, depend on PSTN connections. Once identified, upgrade these systems to VoIP-compatible versions and consider whether you also need managed IT solutions and support to keep them maintained and secure. Partnering with an experienced VoIP provider can make the transition seamless and help preserve the reliability of your systems.