Discover why thousands of UK businesses trust 3CX for modern VoIP communications. With unmatched flexibility, pricing, and unified communications tools, 3CX is the go-to IP telephony system, perfectly aligned with the UK’s PSTN switch-off and digital future.

✔️ 1. Market-Leading Adoption Across the UK

3CX powers hundreds of UK businesses, making the UK one of its largest markets. Globally trusted with 100K+ installs and 40% growth year-on-year.

✔️ 2. Ready for the UK PSTN/ISDN Switch-Off

BT is switching off ISDN by 2025. 3CX ensures full VoIP readiness, helping UK businesses future-proof their phone systems without costly migrations.

✔️ 3. Flexible, Affordable Licensing (No Per-User Costs)

3CX’s concurrent call pricing offers major cost savings. Pay for the number of simultaneous calls, not the number of users—cutting your telecom bill significantly.

✔️ 4. Packed with Unified Communications Features

• Web conferencing (WebRTC)
• Live chat, call queues & reporting
• CRM & Microsoft Teams integration
• Free softphone apps for desktop & mobile

✔️ 5. Deploy Anywhere – Cloud, On-Prem, or Hybrid

Choose your setup: on-premise, public cloud (hosted by 3CX), or hosted on our high availability private cloud. Works with all major SIP trunks & IP phones.

✔️ 6. Secure, Scalable & Supported by UK Experts

Built-in encryption, firewall rules, and role-based access. Scales from small businesses to large enterprises with full UK-based Zen Systems support.

✔️ 7. Exceptional Value Proven by UK Reviews

Rated 9.7/10 for value by UK VoIP platforms. Starting at just £5 per user/month with advanced features included.

Summary: 3CX at a Glance