Multi-Site VoIP Phone System for UK Businesses
AMVIA delivers this service as part of our managed IT portfolio for UK businesses. Fixed monthly pricing, no hidden fees, and a team that understands your business.
Multi-site VoIP connects all your UK office locations on a single phone system — enabling free internal calls between sites, centralised call management, and consistent hunt groups across your business. AMVIA designs and manages hosted VoIP deployments for businesses with two to fifty locations, providing a single contract, single support number, and unified management portal.
Why This Matters
What's Included
Everything you get with this managed service.
Proactive Protection
Continuous monitoring and threat detection to prevent incidents before they impact your business.
Expert Management
UK-based engineers handle configuration, updates, and incident response — so you don't have to.
Regular Reporting
Monthly reports on security posture, incidents handled, and recommended improvements.
Dedicated Support
Direct access to your account team for questions, changes, and escalations.
How We Deliver This Service
Assessment
We audit your current setup and identify gaps.
Design
We design a solution around your specific requirements.
Deployment
We implement with minimal disruption to your operations.
Ongoing Management
Continuous monitoring, updates, and support.
Why Choose AMVIA for Multi-Site VoIP
UK-based specialists delivering measurable results for businesses of every size.
Sheffield-Based, UK-Focused
Our engineering and support team operates from Sheffield. We understand UK compliance requirements, network infrastructure, and the specific challenges facing British businesses.
Accredited & Certified
AMVIA holds Cyber Essentials Plus, ISO 27001, and Microsoft Gold Partner status — giving you confidence that our services meet the highest UK security and quality standards.
1,200+ UK Businesses Protected
We manage IT and security for over 1,200 UK businesses across sectors including legal, finance, healthcare, and professional services. Our track record speaks for itself.
Fast, Responsive Support
Critical issues are responded to within one hour. Our helpdesk is available by phone, email, and portal — with dedicated account managers who know your environment.
Client testimonial coming soon — AMVIA protects over 1,200 UK businesses.
— AMVIA Client
Get Started
Fixed monthly pricing. No lock-in contracts.
Frequently Asked Questions
Cloud-hosted VoIP typically costs £8-£25 per user per month depending on features. This includes calls, voicemail, mobile apps, and call recording. Most businesses save 40-60% compared to traditional PSTN costs. Microsoft Teams calling plans offer another option within the M365 ecosystem.
VoIP transmits voice calls over your internet connection instead of traditional phone lines. It requires stable broadband or a leased line. Businesses typically save 40-60% on call costs compared to traditional telephony. Over 4.9 million UK businesses now use VoIP.
Yes, when paired with adequate connectivity. Modern VoIP systems on leased lines or FTTP deliver HD voice quality with latency under 9ms. 97% of UK workers say communication impacts their daily task efficiency. VoIP outperforms traditional telephony on features, cost, and flexibility.
Direct Routing connects your Microsoft Teams environment to the PSTN via a certified Session Border Controller, enabling external calls from Teams. It provides more flexibility and often lower per-minute costs than Microsoft Calling Plans. It is ideal for businesses already using Microsoft 365.
The PSTN switch-off is scheduled for January 2027. Around 2.4 million UK businesses still operate on PSTN or ISDN lines. FTTC broadband that relies on PSTN copper lines will also cease to function. Businesses must migrate to IP-based telephony and connectivity before the deadline.
Ready to Talk?
Get a tailored quote for your business.
Related Resources
Business VoIP Guide
Complete guide to business VoIP in the UK
Microsoft Teams Direct Routing
Teams calling with PSTN connectivity
VoIP vs Traditional Landline
Compare VoIP and traditional telephony
PSTN Switch-Off Guide
What the switch-off means for your business