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A complete unified communications solution, 3CX is an open-standard, software-based business phone system that works with a variety of IP phones and SIP trunks and can be deployed in the cloud, as a Hosted PBX, installed on a physical server, or in your company’s virtual server environment. With transparent pricing, affordable maintenance, and in-built security, 3CX is one of the most competitive and secure systems on the market today.

3CX has eliminated common headaches such as complicated pricing structures that are typically associated with traditional telephone systems and per-user costs that are associated with Hosted phone systems.  For no extra cost, 3CX users can enjoy video & web conferencing, live chat with colleagues and website visitors, queue-based messaging, web, desktop, and smartphone apps, and so much more.

3CX Cloud: A fully managed, complete Unified Communications System



Voice over Internet Protocol (VoIP) technology utilises a company’s local area network (LAN) to make and receive phone calls via a broadband internet connection instead of the traditional, more expensive analogue phone line (PSTN).

Transform Your Business Communications with Cloud VoIP

The traditional business telephone solution is becoming outdated. With the rise of Internet and cloud technologies, organizations find it increasingly difficult to justify maintaining a traditional phone line. The challenges and costs of scaling a traditional PBX phone system to accommodate growth make businesses seek more dynamic solutions that align with their current and future needs.

A cloud VoIP solution from RCS allows your business to eliminate expensive telephone services and replace them with flexible, cost-effective solutions tailored to your organization's communication needs. By leveraging the Internet—an existing resource—you can secure the communication platforms your company requires while removing unnecessary service costs.

Unified Communications (UC)
Web, Desktop & Mobile Apps

Every 3CX user receives video and web conferencing, Instant Messaging (IM), voicemail-to-email, and mobile applications without paying additional fees. 3CX’s mobile apps provide users with advanced UC features on a single platform so users do not have to purchase or learn separate software.

• Up to 250 Video/Web Conference Participants
• Mobile apps available for Windows, MAC, Android, & iOS
• Live Chat & Talk Website Plug-in
• Integrated WebRTC Softphone
• Voicemails are converted to sound files and/or transcribed and forwarded to emails
• CRM Integration with Click to Call, Journaling, Screen Pops, & more

• Send text/chat messages, files, & more at no additional cost
• View status of colleagues (presence) to avoid unnecessary call transfers

web client.png

Smartphone Apps
Mobile iOS & Android Clients

Never miss a call with 3CX’s VoIP clients for Android and iOS. Your mobile device transforms your smartphone into your office extension- providing the ability to make and receive business calls at no cost to you. 3CX’s VoIP client includes colleague presence, seamless call transferring, cell phone number privacy, call status management, and more.

• No additional licensing costs.
• Built-in SIP tunnel/proxy resolves remote firewall problems.
• Remote configuration, easy set-up via email.
• Call transferring & call status management.
• Call recording with history with PRO & Enterprise plans.
• Visual Voicemails.
• Presence Status.
• Internal Chat & Group Chat.
• Schedule Conference Calls.
• Save battery life with PUSH notifications.

Video Conferencing & Web Meetings

Save time and money by hosting virtual meetings with 3CX’s integrated video conferencing and web meeting solution. Built using Google’s WebRTC technology, participants join meetings simply via their web browser without complicated downloads, additional software, or plug-ins.

• No per user licensing or extension fees; up to 250 participants
• Unlimited users no matter which package you choose
• No monthly fee, just one low yearly payment for entire business phone system
• Join, schedule, or launch on-demand meetings directly from 3CX apps

• Bandwidth Management and Control
• Features include chat, polls, screen sharing, application sharing, whiteboard, recording, & more


3CX provides a free Live Chat plug-in for your website

• Interact with your website visitors in real time via 3CX’s Live Chat.
• Answer website chat messages in 3CX web, desktop, or mobile apps.
• Website visitors can go from chat to call, or video call with 1 click.
• Create queue groups & integrate your CRM for efficient message management.
• Available for WordPress, Drupal, Joomla, Wix & Weebly.

RCS Technologies VoIP Phones

Unified Messaging

3CX unified messaging provides a consolidated approach to text, chat, social media, and website messages. 3CX delivers all messages into a centralized location for easy response, reporting, and archiving. All messages can also be accessed from any 3CX client– the web-based app, desktop app, or mobile app for efficient message management.

Centralized Message Management

• Send & receive messages from 3CX web, desktop and mobile apps.
• Messages are sent & received to your business numbers (not personal phone numbers).

Supported Messages include:

• SMS/MMS Text Messaging
• 1:1 and Group Chat
• Website Chat (via 3CX Live Chat plugin)
• Facebook Messenger Integration

Contact Center
Call Center Features, Remote Bridges, Failover, CRM Integration & More

Presenting advanced contact and call center technology, 3CX PRO’s productivity-boosting software is offered at an affordable price for all businesses no matter their size. 3CX Contact Center includes free WebRTC video conferencing for up to 250 participants.

• Click-to-Call, Call Pop-ups, Call Journals & more from your CRM.
• Video & Web Conferencing for up to 250 participants.
• Advanced Call Reports help manage staff performance.

• Position in queue remains even if the customer decides to hang up.
• Built-in Failover functionality.
• View presence of remote workers.
• Skills-based routing included with Enterprise edition.
• Call Recording is included for no additional charge.
• Live Call Management including Listen-in, Whisper & Barge.
• Live Chat & Talk plug-in for your website .


3CX Security
The New Standard for PBX Security

As Hackers become more sophisticated, so does 3CX security. 3CX uses anti-hacking algorithms and global IP blacklists to block IP addresses automatically that are attempting SIP connections or admin type connections through the firewall.

Security enhancements are pushed to the system and can be updated automatically or manually. 3CX provides real-time alerts of any anti-hacking attempts and SIP Trunk status, as well as the overall health and service status of the system. 3CX’s in-built security includes:

Encryption of Voice Traffic via SRTP.
All traffic to clients and via SBC is encrypted.
More secure web server configuration.
Detection and auto blacklisting of SIP Attack tools

Automatically generate & manage SSL certificates.
Provisioning of phones via HTTPS.
Connections to client and console via SSL.
A+ rating from SSL lab..

VoIP Leicester


Gone are the days when we just sit at a desk in an office with a landline and a computer. You will always be “in the office” when you use 3CX, our Unified Communication app installed on your mobile phone or laptop. 

3CX is our suite of cloud communications and collaboration software that provide integrated business phone service, messaging and presence, audio and video conferencing, screen sharing, file sharing, virtual meeting rooms and more.

This new way of working frees up your business from the constraints of physical locations, giving everyone a fast and easy way to get business done in or out of the office.

1. No long contracts, we have a 30 day rolling contract - So you're free to stay or free to go

2. No expensive on site PBX systems

3. Huge savings – Up to a 78% reduction in costs compared to ISDN due to cheaper calls and no more expensive line rental.

4. Greater flexibility –  Work anywhere in the UK with no need to change number. Our services deliver calls straight any device

5. Faster installation – Existing physical lines can be utilised  to provide connectivity; no more waiting for an engineer installation means you get connected faster.


Benefits of VoIP

6. Higher resiliency – Multiple line types can be installed to provide an automatic backup and fail-over to ensure you’re  always connected.

7. Advanced features – Increased control, integration and analytics offers a huge range of new and advanced features.

8. Where as other VoIP suppliers say free minutes, its normally a bolt on service that they include in the price, we at RCS give you the option for the 1000 minute bolt to help reduce cost if you don't make that many calls each month.

Personal Assistant

Advanced find me/follow me feature will locate you at up to 5 programmed locations

Hunt Groups

Rings multiple extensions when a call come in. ideal for sales and support teams

Voicemail to Email

When you receive a voice mail our system will send you an email to let you know

Time-of-Day Routes

Routes calls based on schedules; configured for multiple groups

Unified Communications

Our software can be installed on most devices allowing you to be in the office when you're not.

Company Directory

A virtual receptionist provides customized messages connecting callers to pre-configured destinations

Custom Music On-Hold  

Upload custom files to play music or deliver a company message

Custom Caller ID

Override the default network Caller ID with a custom description


VoIP Phone Systems Leicester
VoIP Leicester

We give you the freedom to work from anywhere.

We are RCS Technologies

Contact US

At RCS, we pride ourselves on helping our customers satisfy all of their business communications needs. As technology continues to evolve, we always stay at the cutting-edge of unified communications. From business phone systems, to video conferencing and collaboration tools, to mobile device support, RCS is here to keep your business connected and communicating, no matter where you are.

 please contact us to learn about our solutions for your business

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