Business Phone Systems
Modern VoIP Phone Systems for the Modern Business
Reduce your phone costs by up to 50% with feature-rich VoIP systems. Crystal clear calls, work-from-anywhere flexibility, and future-proof technology.

The PSTN Switch-Off Is Coming in 2027
Feature-Rich VoIP for Your Business
Everything you need to communicate professionally, collaborate efficiently and work flexibly.
Crystal Clear Calls
HD voice quality over your internet connection, delivering clearer conversations than traditional phone lines.
Work From Anywhere
Take your business number with you on mobile, laptop or desktop. Seamless communication wherever your team works.
Unified Communications
Voice, video conferencing, instant messaging and presence all in one platform for streamlined collaboration.
Advanced Call Management
Auto-attendant, call queues, ring groups, call recording and voicemail to email to manage calls professionally.
Detailed Analytics
Real-time dashboards and reporting on call volumes, wait times and team performance to optimise your operations.
Integration Ready
Integrate with Microsoft Teams, CRM systems and other business tools to boost productivity across your organisation.
3CX Bronze Partner — Supplying Leading IP Phone Hardware
As a certified 3CX Bronze Partner, we have deep expertise in deploying and supporting 3CX systems. We supply and configure IP desk phones from the industry's most trusted hardware brands.
Yealink
Market-leading IP phones with HD voice, wide 3CX compatibility, and a full range from entry-level to executive models.
snom
Premium German-engineered desk phones renowned for exceptional audio quality, security, and intuitive usability.
Fanvil
Cost-effective, feature-rich IP phones ideal for businesses looking for reliability without compromise.
Save Money and Boost Productivity
VoIP phone systems deliver significant cost savings compared to traditional phone lines, while providing far more features and flexibility for modern businesses.

Simple, Transparent Pricing
No hidden fees, no complicated tiers. Just straightforward pricing that scales with your business.
Business VoIP Phone System
Billed monthly. No long-term contracts required.
Future-Proof Your Business Communications
Do not wait for the PSTN switch-off. Upgrade to a modern VoIP phone system today and start saving immediately.
Frequently Asked Questions
BT is switching off the traditional Public Switched Telephone Network (PSTN) by January 2027. This means all businesses relying on analogue phone lines or ISDN services will need to migrate to a VoIP-based phone system. If your business still uses traditional phone lines, now is the time to plan your transition to avoid disruption. Britannia IT can manage the entire migration process for you.
Most businesses save up to 50% on their phone costs by switching to VoIP. Savings come from lower call rates, free calls between offices and remote workers, elimination of expensive ISDN line rentals, and no costly PBX hardware to maintain. Call us on 01704 320640 for a personalised cost comparison.
Yes, we handle number porting from your existing provider so you can keep all your current phone numbers. The porting process typically takes 1 to 2 weeks and is managed entirely by our team. There is no disruption to incoming calls during the switchover.
Each concurrent VoIP call requires approximately 100Kbps of bandwidth. For a typical office of 20 users, a standard FTTP or SOGEA connection is usually sufficient. For larger deployments or offices with heavy internet usage, we recommend a leased line or dedicated bandwidth allocation with QoS (Quality of Service) settings to prioritise voice traffic. We assess your connectivity as part of every VoIP deployment.
As a 3CX Bronze Partner, we primarily deploy 3CX — a leading VoIP platform offering excellent call quality, advanced features, and flexible deployment options including cloud-hosted and on-premises. 3CX integrates with Microsoft Teams, supports mobile and desktop apps, and includes call recording, call queues, auto-attendant, and video conferencing. For hardware, we supply and configure IP desk phones from Yealink, snom, and Fanvil — trusted brands known for reliability, HD audio quality, and excellent compatibility with 3CX. We tailor the solution to your specific business needs.
A typical VoIP deployment can be completed within 24 hours for smaller businesses. Larger or more complex installations with multiple sites, call centre features, or CRM integrations may take 1 to 2 weeks. We handle the full setup including handset configuration, user provisioning, call routing, and staff training to ensure a smooth transition.