Empowering Your Business with Scalable, Cost-Effective Communication
VoIP Phone System for Small Business
Cut your phone bill by up to 80% and get better call quality at the same time. We install and manage 3CX VoIP phone systems for small businesses and charities across London — softphones, desk phones, mobile apps, and full integration with Microsoft 365. We handle everything from number transfers to ongoing support.
Why We Recommend 3CX
3CX is a cloud-based phone system that replaces your traditional PBX. It works over your internet connection, supports remote workers out of the box, and costs a fraction of what you're paying now. We've been installing 3CX for years and we handle the full setup — hardware, configuration, number porting from BT, Virgin, or whoever you're with, and user training.
Microsoft 365 Telephony Integration
Already using Microsoft 365? You can replace your phone system entirely with Microsoft Teams calling. We configure your tenant for inbound and outbound calls, set up call routing, auto-attendants, and voicemail — so your team makes and receives calls directly from Teams. One fewer system to manage, one fewer bill to pay.
Here’s what’s included in our VoIP Phone System for Small Business
Enjoy cost savings and flexibility with our seamless VoIP (Voice over Internet Protocol) telephony solutions, backed by 1st-IT's extensive expertise:
Number porting — keep your existing phone numbers when switching from ISDN or another provider
Crystal-clear VoIP calls — voice and data over a single internet connection with no drop in quality
Encrypted calls — all voice traffic is secured end to end
Works with existing hardware — compatible with Avaya, Cisco, and other IP handsets you already own
Hosted PBX — scalable cloud-hosted system with no on-site server required
Full network integration — connects with your data systems, CRM, and Microsoft 365
Remote access — your team can make and receive calls from anywhere — office, home, or mobile
Experience and Flexibility
It depends on the number of users and handsets. Most small businesses save 50–80% compared to traditional phone lines. We’ll give you a clear quote after a quick call — no hidden fees.
Yes. We handle the full number porting process from your current provider — BT, Virgin, or anyone else. Your clients won’t notice the switch.
Not necessarily. 3CX works with softphones on laptops and mobiles, so you can start without buying any hardware. If you want desk phones, we supply and configure Cisco or Yealink handsets.
Calls can be automatically forwarded to mobile numbers as a failover. If you have a backup internet connection, VoIP switches to that seamlessly.
Yes. That’s one of the biggest advantages of VoIP. Your team can make and receive calls on their laptop or mobile app from anywhere — same number, same system.
Still Paying for Traditional Phone Lines?
Switch to VoIP and cut your phone costs overnight. We'll assess your current setup, recommend the right system, and handle the entire migration.