
VoIP Phone Systems for Businesses in Oxford & London
Smarter, More Flexible Business Communication Starts Here
Say goodbye to expensive phone bills and outdated telecom systems. At Network Assistance, we provide modern, reliable, and feature-rich VoIP phone systems tailored for small and medium-sized businesses across Oxford, London, and the South East.
Whether you’re a startup, growing business, or multi-location organisation, our VoIP solutions help you stay connected, reduce costs, and improve the way you communicate—both internally and with your customers.
What’s Included in Our VoIP Service
We deliver end-to-end VoIP solutions, from supply and setup to ongoing support and maintenance:

Hosted VoIP Setup
We install and configure hosted VoIP systems that run in the cloud—no on-site PBX hardware required. Your business gains flexibility, scalability, and built-in disaster recovery.

Multi-Device Access
Make and receive calls from desk phones, mobile devices, or computers. Perfect for hybrid teams, remote workers, and on-the-go professionals.

Local & Geographic Numbers
We provide UK local area numbers, non-geographic 03/08 numbers, and international numbers so your business appears local—wherever your customers are.

Advanced Call Features
Enjoy voicemail-to-email, call forwarding, auto-attendants (IVR), call queues, ring groups, call recording, and custom routing—all included.

Number Porting
Already have business numbers? No problem. We handle full number porting to our VoIP platform so you don’t lose continuity with clients or suppliers.

Full Support & Maintenance
Our Oxford-based engineers provide setup, training, and ongoing support—ensuring your system runs smoothly with minimal fuss.
Upgrade Your Business Phones with VoIP
Ready to modernise your phone system and cut telecom costs? Talk to our team about a VoIP solution that works for your business and grows with your team.

Why Choose VoIP for Your Business?
VoIP (Voice over Internet Protocol) uses your broadband connection to make calls—offering huge cost savings and flexibility over traditional landlines or ISDN systems.
- Lower call costs (local & international)
- Scalable as your team grows
- Supports remote and hybrid work
- Includes analytics and reporting
- No expensive on-site PBX hardware
- Secure, encrypted voice traffic