Abrar Jussab • 6 February 2025

About

The VoIP Shop was founded over 15 years ago by a telecommunication entrepreneur. Today, our expert team offer award winning VoIP phone systems, Cloud telephone systems, 3CX phone systems, and a cloud call center for small to large businesses.

This article was authored by: 

Zakir Jussab – Telecommunication Expert
Zakir has 15 years of experience in the telecommunication. specializing in telephone systems, and sustainable business. 

Eight Business Phone System for Office in 2025

It's not easy to choose a telephone system that is highly rated using subjective judgements. You'll need to consider pricing and features to find the best option for your team.

 

This page reviews the ten most useful telephone systems for office and home. We compare them to the key factors that are important to small businesses so you can choose the best one for you. You can use our free consultation to receive tailored quotes from top phone system suppliers for small and large businesses for more personalized assistance.

 

The Fanvil X Series – 3CX has been identified as the best office phone systems. So, this is due to its exceptional voice quality, voice encryption, and ability to work with remote and hybrid teams. Is this the right choice for your office?

 

Effective communication within your company is possible through office telephone systems. You can make a significant impact on retaining and acquiring customers. To ensure that important calls and sales opportunities are not missed, you must have excellent audio quality and clear directory options.

best office phone system

Are These the Issues Your Business Has to Face with exciting phone system? 

Are you missing any messages? An issue with voicemail?

Are customers frustrated by poor call routing?

Are you able to keep in touch with your staff while they are on the move? It would help if you had them to be connected.

Are customers able to get through to the person on the other end of the line?

Are site-to-site calls included in your bill? Do you want to cut your monthly bill?

Search for the best telephone system to help your company communicate in this era of remote work and office. 


A productive work environment is dependent on a functioning office phone system. Our team of experts has compiled a list of the top eight most reliable telephone systems for small businesses to help you make an informed decision for your office.

Top Performing phone systems for office in UK – Reviewed by Experts 

1. Fanvil X Series - 3CX

Features – Clear display, HD audio, supports EHS headset
Suitable for – Large and Mid-level companies 
Cost – Starting from £40

2. Polycom VVX 600

Features – Attend video conference from internal USB camera 
Suitable for –
Big size companies and executives
Cost –
Starting from £199 - £299

3. Polycom VVX 301

Features – High audio quality, reduced background noise 
Suitable for –
Small & entry level size companies and economy budgets
Cost –
Starting from £64 - £104

4. Yealink SIP-T21P

Features – High-definition audio 
Suitable for –
Limited call users & small office
Cost –
Starting from £39

5. Yealink T49G

Features – Conference support, HD quality, 4.3” Touchscreen 
Suitable for –
High Definition video, audio calls user’s
Cost –
Starting from £499

6. Cisco CP-8861

Features – Quality headset
Suitable for –
Remote workers for more secure 
Cost –
Starting from £299

7. Cisco 8845 IP Phone

Features – HD 720p video camera
Suitable for –
Small business with HD video call
Cost –
Starting from £240

8. Grandstream GXP 2170

Features – Support 12 lines
Suitable for –
Small business with dealing large volume calls

Cost – Starting from £122

Before Purchasing a Business telephone system, Ask Yourself the following questions:

1. How many lines are you going to need?

2. What are the extensions required?

3. What features do you want on your system?

4. How many sockets are required by your line provider?

5. Is your telephone system able to grow as you expand?

6. Do you need call forwarding to mobile devices and integration with your system?

7. Do you need call redirection for staff who work remotely?

8. Would you like a high-speed network that can be used wirelessly?

9. Does your company need to be able to integrate its phone system with your IT systems?

10. Do you want to be able to identify customers and dial numbers using a computer? Computer Telephony Integration (CTI) is the name of this process.

11. What are your budget limits for line rental?

Office Telephone Systems Features 

Call reporting

Logging of both outbound and inbound calls is possible.

Auto Disaster Recovery

In the unlikely event that your site loses service,

Conference Bridging

Clients, suppliers, and colleagues can dial into a virtual meeting space.

Mobile Applications

Your extension is your smartphone, tablet or laptop, and any other mobile device.

Smart Voicemail

Voicemail that can detect when you are on another phone

Voice to Email

You can access your voicemails by email or have them forwarded.

Text messaging

To communicate by text, use your primary number.

Call recording 

You can toggle the call recording on or off.

Call Blocking

Can block unwanted and spam calls

Hold Music

Music on while customers are holding calls

List of Best Office Telephone System 

We've compiled a list of the top office phone systems for small and large businesses. These were rated on many factors, including cost, ease of use, additional features, and cost. Each model we have selected can be integrated into your existing IT network.

1. Fanvil X Series - 3CX 

Fanvil offers a variety of VoIP phones that are cost-effective and feature-rich, specifically for business use. Fanvil SIP phones have HD voice quality and excellent usability. They are also fully compatible with 3CX (a software-based IP PBX).

Typical Cost 

Start from £100

Pros

  • User friendly phone
  • High-Definition voice quality
  • Suitable for large business
  • Cost effective
  • Speed dial

Cons

  • Does not come with a video call facility 
Fanvil X Series - 3CX
Polycom VVX 600

2. Polycom VVX 600 

The VVX 600 is a mid-range VoIP phone that provides innovative features for small and medium-sized businesses.

Typical Cost 

Start from £200 - £300

Pros

  • HD voice
  • Multiple USB port
  • LCD touch screen 4’3
  • Support Bluetooth headset
  • Can run 16 individual IP lines

Cons

  • Not user friendly 

3. Polycom VVX 301 

Although the VVX 301 has been discontinued, its status as an iconic entry-level IP phone system makes it worth buying refurbished or new. It's hard to find a VoIP phone that offers all the VVX301 features at a lower price.

Typical Cost 

Start from £65 - £105

Pros

  • Programable 6 call lines
  • 208×104-pixel screen
  • Two Ethernet ports 10/100
  • HD voice

Cons

  • No Bluetooth 
  • No Video calls
Polycom VVX 301
Yealink SIP – T21P

4. Yealink SIP – T21P 

This entry-level IP desktop telephone supports two VoIP accounts and is the best value option on this list. It is compatible with many leading IP PBX providers.

Typical Cost 

Start from £45

Pros

  • Value for money
  • No need power supply because of its PoE features
  • Up to 2 IP account supported
  • HD audio
  • Highly reliable 5-line LCD display

Cons

  • No USB ports
  • Security weak and no voice encryption

5. Yealink T49G 

The Yealink T49G is a video collaboration telephone ideal for executives and teleworkers. The Yealink VP-T49G offer the perfect balance of simplicity and advanced options, allowing professionals and business executives get high-quality communications.

Typical Cost 

Start from £65 - £105

Pros

  • Optimal HD voice
  • Fully 1080p HD video
  • HDMI port
  • Recording
  • Bluetooth
  • Dual band WIFI

Cons

  • Not suitable for entry level
  • High price 
Yealink T49G
Cisco CP-8861

6. Cisco CP-8861 

Cisco has some of the most advanced VoIP phone systems, including the CP-8611. The CP-8861 features five programmable lines and Bluetooth connectivity. It also has a USB port that charges super-fast.

Typical Cost 

Start from £270

Pros

  • 5-inch VGA color display
  • Inbuild Bluetooth
  • Two USB port
  • WIFI access
  • Uses voice encryption so secure
  • Best voice quality

Cons

  • High price without HD video calling

7. Cisco 8845 IP Phone 

Cisco 8845 provide high level video call option and advance features. The 8845 is a challenging choice regarding ease of use, functionality, features, and HD video communication.

Typical Cost 

Starts from £250

Pros

  • Customize ringtone
  • High level user experience video call
  • HD 720 camera
  • 5-inch big screen
  • 5 SIP accounts

Cons

  • High priced if you don’t want video call option
Cisco 8845 IP Phone
Granstream GXP 2170

8. Granstream GXP 2170 

Grandstream GXP 2170 IP phone is an excellent value for money. This unit is ideal for administrators, receptionists, and salespeople. It has 48 customizable keys and HD voice quality.

Typical Cost 

Start from £120

Pros

  • Great quality audio
  • 5-way conference support
  • Inbuild Bluetooth
  • HD audio and LCD display
  • Up to 6 IP accounts
  • 48 programmable softkeys

Cons

  • Not compatible with skype business

Want to get Multi line phone system with affordable price?

Top selling Office telephone system for small business in UK: 

As a small business, looking for a new phone system is easy. There are so many options out there and all of them have merit. Here's our list of some of the best telephone systems available right now in the UK.

The 9 best small business phone systems in UK are: 

We review the Nine of the best mobile phone system. Compare them to the most critical factors for small businesses to help you choose the best one for your business. You can request a free consultation with the leading phone system suppliers to your small business for more personalized assistance.

Telephone System Provider's Pricing Free Trial Installation
The VoIP Shop Start from £ 9.45 /User/Month On Request FREE
Ringcentral Start from £ 9 / User/Month Available FREE
Enreach Need to talk with them NO Depends on location
BT Average £35 / User/Month On Request FREE
8x8 X Series Start from £ 10 /User/Month Only on Top-Level Plan Depends on location
Lily Cloud Need to talk with them On Request Depends on location
Mitel Cloud Start from £13.59 / User/Month On Request FREE
4Com HiHi Need to talk with them NO FREE
Berry System Need to talk with them On Request Depends on location

Does your entire team work from home?

You'll then need a portable, virtual, cloud-based phone system with easy access and location flexibility. Let us know what you need to match you with the best phone systems.

Types of Business phone systems

Generally speaking, there are two basic types of office phone systems: On Premise PBX (private branch exchange) Phone System, and Cloud VoIP phone system.

What is on-premises? 

Software that is "on-premises" means that the servers are on-site. Software hosted on-site by organizations has a dedicated room for data hardware managed and maintained by employees.

What is private branch exchange (PBX)?

Private branch exchanges (PBX) are telephone systems that switch calls between users using local lines and provide users with a limited number of outside phone lines. So, this allows organizations to save money rather than purchasing an external phone line for each user.

What is on-premises PBX?

The term "on-premises" refers to a PBX system being hosted at the company's premises. With on-premises PBX, you can enjoy IP routing technology, which sends phone calls by IP packets over the internet instead of using circuits. VoIP communication is also possible with on-premises PBX.

What is cloud phone system?

Cloud-based phone services use the internet to send voice signals between different IP addresses. It does away with the need for hardware on-premise, reducing the maintenance costs of traditional telephone lines.

 

Cloud phone systems are usually called something different, such as: 

  • Hosted phone systems
  • VoIP phone systems
  • IP phone systems

How cloud phone system works?

  1. Voice signals can be transformed into small bits of data transmitted through voice pockets.
  2. Voice packets are sent over the internet to the VoIP provider of the sender.
  3. The VoIP provider routes the call through a cloud-based Private Branch Exchange.
  4. When the pocket reaches the VoIP receiver, it converts back to voice signals.

What is the difference between cloud Phone System and PBX phone systems?

Although they are similar in specific ways, cloud and on-premise phone systems have apparent differences. Many people believe that the cloud phone system doesn't work in their office and, therefore, it is slow and lacks features; this is untrue.

 

A cloud phone system can be as fast, if not faster, than an on-premise system due to its stable broadband speed. On-premise systems are not as feature-rich as cloud phone systems.

Cloud Phone System On Premise PBX Phone System
Modern technology Old technology
Low cost per user Expensive to buy
Along with mobile app No mobile app
Easy plug and use Long installation process
Life time free upgrades Need maintenance
Free headset Expensive hardware’s
Cloud line (SIP) Physical line (ISDN)
Packet data switch Circuit data switch
tradition on site pbx vs cloud voip phone system

Conclusion

You are now ready to find the best office phone system for your business.


Everything you need to know about office telephone systems in the UK. We also recommend the best products available in the UK. Next, gather quotes from potential phone system small business to make sure you are making the right business decision.

 

It can be time-consuming and boring to gather different quotes from different providers. Poor advice can also be detrimental to your business. Just contact us, and we will take care of the rest. 

 Must-Have Features for Small Business Phone Systems | The VoIP Shop
by IT Admin 15 April 2025
Explore must-have small business phone system features—VoIP, mobile integration & more—to boost communication, cut costs, and improve efficiency.
Phone System for Your Small Business
by Abrar Jussab 9 April 2025
Discover how to choose the perfect phone system for your small business in the UK. Learn about VoIP, cloud-based, and hybrid systems to improve communication, scalability, and customer service.
Top 10 Business VoIP Provider’s in 2025
by Abrar Jussab 1 March 2025
business phone systems reviews depending on pricing, benefits, phone capabilities, support, reporting, features, and more. Read now
VoIP Phone System for charity
by Abrar Jussab 20 February 2025
Any company that is a UK-registered charity may be eligible for a free telephone system. Simply contact our expert below and we'll take care of all of your VoIP systems.
Best VoIP Routers for Home and Small Business
6 February 2025
VoIP routers are becoming more and more popular these days, as they offer a number of advantages for both home and small business users. Here are the best ones for 2025.
BT Alternative in UK
by Abrar Jussab 20 January 2025
We Compared 5 BT alternatives side by side, comparing features, pricing and customer service, here are our findings.
best VoIP phones of 2025 for small business
by Eazi Business 15 January 2025
Discover our full range of VoIP phone systems for small businesses. Choose from TheVoIPShop Cloud Voice, Cloud Phone or 3CX, Hosted phone system.
voip software for windows and mobile
by Abrar Jussab 10 January 2025
Looking for the best VoIP Software provider in the UK? Read our expert comparison of 7 top VoIP software providers, including features, pricing, and plans, and find out why The VoIP Shop is the best choice for your communication needs.
Lan and firewall guide for cloud phone system
by Abrar Jussab 10 January 2025
Optimize your LAN and firewall for cloud phone systems. Learn best practices, port configurations, and traffic prioritization for reliable VoIP communication.
Ringcentral alternative to small business in UK
by Abrar Jussab 10 January 2025
Are you looking for Ringcentral alternative for your business communication? But have a lot of confusion to choose right VoIP Provider? Check here for complete guide
Show More