Top 10 Cloud-based Phone Systems for Businesses in the UK

Cloud phone systems in the UK offer businesses cost-effective communication, enhanced flexibility, and advanced business telephony features. It enables businesses to scale easily and expand globally using virtual phone numbers.

• Budget-friendly: Cloud phone systems eliminate the need for expensive hardware and maintenance, reducing overall costs.
• Flexible: Employees can make and receive calls from any device, whether at the office or working remotely.
• Advanced features: A UK cloud phone system often comes with advanced telephony features like call routing, voicemail-to-email, call analytics, and more.
• Global Presence: Businesses can easily manage communication across multiple countries by using virtual numbers, enhancing their global reach.
• Scalable: Businesses can add or remove members without changing physical hardware or setup.

Calilio, RingCentral, CallHippo, Aircall, Dialpad, Nextiva, Ooma, Vonage, Ringover, and CloudTalk are the 10 best cloud-based phone systems in the UK.

Calilio stands out as the best cloud phone system for UK businesses for its powerful combination of advanced features, ease of use, and flexible access. It brings all your communication - calls, SMS, and voicemail into one simple, unified callbox that works across desktop, mobile, and tablet.
Besides basic call-handling features like call forwarding, recording, and voicemail, it also includes AI tools that summarize calls, detect sentiment, and track outcomes. Additionally, Calilio provides affordable UK virtual phone numbers and cloud-based numbers from 100+ more countries, making it easy for UK businesses to establish a local presence or manage global outreach.
 

Key Features

• Call Monitoring: Supervisors can listen to live calls and provide real-time coaching.
• Auto Attendant: Automatically routes calls to the right department, reducing wait times.
• Shared Numbers: Multiple agents can use the same business phone number.
• Unified Callbox: Manage all calls in one place, enabling seamless transitions.
• Sentiment Analysis: Evaluate customer emotions during calls for a better understanding and responses.
• Interactive Voice Response (IVR): Automatically routes customers to the appropriate department via a self-service menu.

RingCentral is a top choice for UK businesses seeking a reliable cloud phone system that goes beyond basic call management. One of its standout features is the AI-powered communication suite, which includes real-time call summaries, transcriptions, and intelligent insights to boost productivity and efficiency.
Moreover, RingCentral integrates with over 500 tools, including top CRMs like Salesforce, HubSpot, and Zendesk. RingCentral also supports communication through multiple channels, enabling businesses to manage customer interactions efficiently.
 

Key Features

• Call Data Insights: Provides reports on call volume and response.
• Customer Insights: Analyzes customer behavior to personalize interactions and boost satisfaction.
• Interactive Virtual Response (IVR): Route calls through an automated menu.

CallHippo is a trusted provider of cloud-based phone systems in the UK, offering businesses dependable call connectivity across multiple industries. Using a global network and partnerships ensures reliable communication worldwide.
The platform also offers caller ID support in over 70 countries, allowing businesses to display local numbers and establish trust with customers globally. Furthermore, with powerful features like parallel dialing and smart DID routing, CallHippo boosts sales team efficiency, optimizes call flow, and enhances customer experience.
 

Key Features

• Call Routing: Directs calls to the right agent or department for faster responses.
• Voicemail Greeting: Offers a personalized and professional voicemail greeting to callers.
• Real-time Insights: Provides supervisors with real-time call data and metrics to track agent performance.
• Smart Switch: Automatically connects customers to the right agent or department.

Aircall is a leading cloud telephony system provider in the UK, offering an efficient and flexible communications solution. The platform delivers VoIP-based software, enabling businesses to manage calls seamlessly from both mobile and desktop devices.
Additionally, Aircall equips businesses with powerful tools, including the AI Voice Agent, Shared Inbox, and Business Hours. These features let teams automate call management, organize workflows, and efficiently handle customer inquiries.
 

Key Features

• Call Conference: Enable multiple people to join the same call.
• Forward to Phone: Forwards calls to another device so you never miss an important call.
• Click-to-Dial: A VoIP browser extension that allows you to initiate calls directly from the browser or CRM.
• Customizable Business Hours: Set working hours to minimize after-hours disruptions.

Dialpad’s cloud-based phone system for the UK provides a range of communication tools such as voice calling, video conferencing, and team messaging to support team collaboration.
Moreover, it's an all-in-one UCaaS and CCaaS platform that streamlines communication, improves collaboration, and enhances customer support, all through a single, easy-to-use interface. With fast, reliable scalability and crystal-clear call quality, Dialpad is perfect for businesses that value speed, clarity, and flexibility.
 

Key Features

• Scalability: Grow your communication system smoothly as your business expands.
• User Access Control: Easily manage permissions.
• 24/7 Customer Support: Access support around the clock to resolve issues quickly.
• Real-time Transcripts: Access call transcripts instantly for quick reviews and improved customer service.

Nextiva is one of the best cloud phone systems for UK businesses, offering a secure, scalable platform with easy-to-use APIs. Its Customer Journey Orchestration (CJO) technology provides real-time insights and automates key workflows, improving customer service and team productivity.
Moreover, Nextiva’s instant call analytics allow you to quickly resolve customer issues, helping you build stronger relationships and retain loyal customers.
 

Key Features

• Video Conferencing: Host virtual meetings with team members or clients.
• Advanced Voicemail: Enjoy personalized voicemail options, including voicemail-to-email and transcription.
• Screen Sharing: Share your screen during calls to enhance collaboration and discussions.
• Auto Attendant: Automatically greets callers and routes them to the appropriate department.

Ooma is an affordable cloud phone system service provider in the UK. With the Ooma office, your business can make unlimited calls to Canada, the US, Puerto Rico, and Mexico. It also comes with a variety of features, including a virtual receptionist, voicemail-to-email, and call management tools. It’s easy to set up and also provides 24/7 customer support.
Ooma Office also operates without long-term contracts; you can adjust or cancel your service anytime.
 

Key Features

• Call Parking: Hold a call temporarily and pick it up from any phone or extension.
• Hot Desking: Use any desk or device to make and receive calls.
• Multi Ring: Ring multiple devices simultaneously.
• Call Blocking: Block unwanted or spam calls.

Vonage is a top cloud telephony system for UK businesses, offering unlimited domestic calls and SMS within the UK on various plans. This is ideal for companies with high communication needs, reducing unnecessary costs. The system also uses advanced SD-WAN technology, including VBC SmartWAN and SmartWAN+, to prioritize real-time communication, such as voice and video.

Key Features

• Desktop and Mobile Apps: Take calls from any device, whether you’re at your desk or on the move.
• Desk Phones: Offer traditional phone options for those who prefer using physical devices.
• AI Virtual Agent: Use an AI assistant to automate customer interactions.
• Analytics and Insights: Gain access to call performance data to make better decisions.

Ringover is a UK cloud phone system powered by Artificial Intelligence, helping teams stay organized and efficient. Plus, it allows unlimited calls to over 90 destinations, making it cost-effective for global communication.
Furthermore, Ringover’s omnichannel messaging lets businesses manage all communication channels in one place. It also includes in-call intervention tools like call whispering, allowing supervisors to guide agents in real-time and ensure smooth, high-quality customer interactions.
 

Key Features

• Smart Routing: Route calls to the appropriate agent or department.
• Parallel Dialer: Automatically dial multiple numbers to boost live connections.
• Surveys: Collect valuable customer feedback through automated surveys.
• Portability: Stay connected across devices and locations.

CloudTalk is the ideal cloud phone system for small UK businesses, delivering essential calling features and global scalability. It offers HD audio, voicemail, smart call routing, and mobile access, ensuring smooth communication across all devices, no matter where your team is.
Additionally, its built-in multi-language support makes it perfect for businesses with international clients or diverse customer needs.
 

Key Features

• Power Dialer: Automate outbound calls to increase the chances of live contact.
• Call Transcription: Automatically convert calls into text for easy review and analysis.
• 3-way Calling: Enable group conversations on a single call for improved collaboration.
• Call Queuing: Place inbound calls in a virtual queue to reduce wait times and ensure quick answers.

Here is a quick comparison of the top 10 cloud phone systems for UK businesses.

While choosing the best cloud-based phone system, consider your business needs, the system's features, scalability, and customer support. Also, prioritize security, reliability, and 24/7 customer support to ensure smooth, secure communication.

Identify your unique requirements, such as the number of users and the specific features you need, including IVR and call routing. Ensure the system can scale as your business grows and provide seamless integration with existing CRM and helpdesk tools.

Choose a business phone system provider that offers robust security. Also, ensure that the system has minimum downtime for disruption-free operations.

Look for a provider that offers 24/7 customer support. This helps ensure that customers' queries and concerns are addressed promptly to boost customer satisfaction.

Compare pricing models to ensure the service fits your budget. Many providers offer pay-as-you-go or monthly subscription models, so consider what best aligns with your business needs.

A cloud phone system is a smart investment for UK businesses, offering cost-effective communication solutions with modern features like call routing and AI-powered tools. It supports businesses in staying connected and productive, whether in the office or remotely.