Cloud Phone System London

Cloud-based phone system installation for London businesses. VoIP, hosted PBX and Microsoft Teams Phone, managed as part of your IT support, not a separate headache.

Get in Touch 020 4511 9111
<1hr Average response time
CE+ Cyber Essentials
500+ Clients supported
from £25 per user / month
About this service

Cloud Phone Systems for London Businesses

A cloud phone system replaces expensive on-site PBX hardware with call routing managed entirely online. Staff make and receive calls from a desk phone, a laptop softphone or a mobile app, all on the same number and system, wherever they're working.

VoIP
& Teams Phone ready
24/7
support included
20+
years securing London businesses
CE+
Cyber Essentials Plus certified
PSTN and ISDN switch-off makes this urgent, not optional

BT is retiring the old ISDN network. Businesses still on legacy phone lines need to move to a cloud phone system before the switch-off, and the sooner it's planned, the smoother the transition.

What's Included

Key Features of Our Cloud Phone Systems

VoIP & Hosted PBX

Advanced VoIP telephony tailored for UK businesses, with no on-site hardware to maintain.

Unified Communications

Voice, video and messaging integrated into one platform, including Microsoft Teams Phone and Webex Calling.

CRM Integration

Hosted phone systems that work alongside your CRM, so calls and customer records stay in sync.

Scalable Cloud PBX

Add or remove users instantly as your business grows or changes shape.

Why Speedster IT

Why London Businesses Choose Our Cloud Phone System

Crystal-Clear Voice Quality

Advanced VoIP technology built for reliable, clear calls.

Seamless Integration

Fits alongside your existing infrastructure, CRM and business tools.

Cost-Effective

No expensive on-site hardware or maintenance contracts.

Reliable & Secure

Built on secure platforms, with 24/7 support behind it.

24/7 Helpdesk coverage
20+ Years experience
CE+ Cyber Essentials
500+ Users supported
What We Cover

What Our Cloud Phone System Service Covers

Design, number porting, installation and ongoing management for London businesses.

VoIP & Hosted PBX Setup

Cloud phone systems configured around the way your team actually works.

Number Porting

Existing geographic and non-geographic numbers moved across with no calls lost.

Microsoft Teams Phone & Webex Calling

Calling built directly into the collaboration platform your team already uses.

Softphone & Mobile App Setup

Staff can call and receive calls from a laptop or mobile with no VPN required.

Call Recording & Reporting

Call analytics, recording and voicemail-to-email included as standard.

Ongoing Managed Support

24/7 support as part of your wider IT support agreement.

Why Choose Us

Why London Businesses Choose Our Cloud Phone System

One partner, one bill

Your phone system managed alongside your wider IT support, not a separate vendor.

Scales with your team

Add or remove users instantly as headcount changes.

No lost calls during migration

Number porting and cutover planned to avoid downtime.

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Frequently asked questions

A cloud-based phone system (also called hosted VoIP or hosted PBX) routes your calls over the internet rather than traditional copper phone lines. Your numbers and call routing are managed in the cloud by your provider. Staff use desk phones, softphones on their computers, or mobile apps — all on the same system.

Yes. Your existing geographic and non-geographic numbers (01, 02, 03, 0800) can be ported to a cloud phone system, usually within 5–10 working days. Speedster IT manages the porting process and ensures no calls are lost during the transition.

Cloud phone systems require no on-site hardware to maintain, scale up or down instantly as your team grows, and allow staff to make and receive calls from anywhere. Features like call recording, auto-attendant, hunt groups, and voicemail-to-email are included rather than requiring expensive add-ons.

Each concurrent VoIP call uses approximately 100 Kbps of bandwidth. A 10 Mbps broadband connection can handle 50+ simultaneous calls comfortably. More important than raw speed is low jitter and packet loss — Speedster IT can assess your connection quality before deployment.

Remote staff simply install the softphone app on their laptop or mobile. They get the same DDI number, can transfer calls to colleagues, join conference calls, and access voicemail exactly as they would in the office. No VPN or complex setup is required.

Yes, Speedster IT designs, installs and manages cloud phone systems, VoIP, hosted PBX, Microsoft Teams Phone and Webex Calling, for businesses of all sizes across London and the wider UK.