How to compare business phone systems.
Comparison frameworks that actually help UK business phone buyers — beyond per-user cost into hosted vs PBX vs Microsoft Teams, support, integration, AI integration, hybrid working. Honest framework for choosing right fit.
What we hear every week.
The frustrations behind why businesses search for how to compare business phone systems in the first place. If any of these feel familiar, the fix is straightforward.
Three main models often confused
Hosted VoIP, on-premises IP PBX, and Microsoft Teams Phone via Direct Routing — three meaningfully different models that are often presented as interchangeable in comparison sites.
Per-user pricing not the full picture
Hosted VoIP at £8/user/month sounds cheap; bundled into broadband it's cheaper still; Microsoft Calling Plans at £18/user/month look more expensive but include some things hosted VoIP charges separately. Per-user comparison rarely apples-to-apples.
Integration depth varies massively
CRM integration, calendar integration, AI receptionist integration, EPOS integration — depth varies across providers. Often invisible until you've tried it operationally.
Hybrid working capability assumed
Modern hosted VoIP includes mobile/desktop apps; older systems don't. If hybrid working is operationally important, capability vs marketing-claim needs careful verification.
How to compare UK business phone systems properly
**Step 1 — Choose deployment model first.** Hosted VoIP suits most UK SMEs (cloud-managed simplicity, low maintenance, modern feature set). Microsoft Teams Phone via Direct Routing suits Microsoft 365-heavy organisations (calls inside Teams workflow). On-premises IP PBX suits specific cases with compliance or customisation needs (declining default). **Step 2 — Address-level requirements.** Number of users, multi-site requirements, compliance call recording needs, hybrid working pattern, integration requirements with specific CRM/ERP. **Step 3 — Feature comparison.** Standard features (call recording, hunt groups, voicemail-to-email, IVR, mobile/desktop apps, call analytics) — should be present across all reputable providers. Differentiation in: AI receptionist integration depth, CRM workflow integration, compliance-grade recording configuration, multi-site routing capability. **Step 4 — Total cost comparison.** Per-user monthly + handsets + setup + integration build + AI integration + compliance recording add-on. Like-for-like total cost across providers. **Step 5 — Support model and SLA.** UK engineers, named account manager, SLA response, escalation path. **Step 6 — Migration approach.** How is the switch from current system handled? Parallel running, number porting, hardware migration, training included. **Step 7 — Bundle option.** Phones bundled with broadband and WiFi typically meaningfully cheaper than separate; operational simplicity has real value.
The Telexico approach to how to compare business phone systems.
Six things our customers consistently tell us matter.
Deployment model chosen first
Hosted VoIP vs Teams Direct Routing vs on-premises IP PBX — three meaningfully different decisions; deployment model frames everything else.
Total cost not per-user headline
All-in monthly + handsets + setup + integration + add-ons. Per-user comparison rarely apples-to-apples without unpacking each quote.
Integration depth verified
CRM integration, AI integration, EPOS integration scoped against your specific stack. Marketing claims verified during scoping.
Hybrid working capability validated
Mobile/desktop apps tested for the actual hybrid working pattern of your team. Not 'we have apps' but 'do the apps deliver the workflow your team needs'.
Support model evaluated
UK engineers vs offshore tier-1, named account manager vs ticket queue, SLA response vs best-effort. Verified before commitment.
Migration plan agreed pre-contract
Number porting, parallel running, hardware migration, training — process matters as much as platform. Scoped before signing.
How UK businesses use this phone comparison framework
**Frame the decision: deployment model.** Most UK SMEs default to hosted VoIP unless they're heavily Microsoft 365 (then Teams Direct Routing) or have specific compliance/customisation needs (then on-premises IP PBX). **Get 2-3 quotes within the chosen model.** Same deployment model, different providers; like-for-like comparison. **Build comparison covering:** per-user cost, all-in total cost, support model, SLA, contract terms, AI integration depth, CRM integration depth, mobile/desktop app quality, migration approach. **Talk to reference customers if available.** Real-world experience of support and integration depth is more reliable than marketing claims. **Don't decide on per-user cost alone.** Total cost + operational fit + support quality is the right framework.
How it works for businesses like yours.
Three real-world setups we deliver across the UK.
Office choosing between hosted VoIP providers
Comparison framework: integration with specific CRM, support model, AI receptionist integration, mobile app quality for hybrid working. Not just per-user cost.
Microsoft 365 firm evaluating Teams Phone vs hosted VoIP
Different deployment models with different commercial profiles. Comparison framework includes Microsoft 365 license cost, Direct Routing economics, Teams workflow fit for staff.
Multi-site business evaluating consolidation
Comparison framework includes multi-site routing capability, central reporting, per-site customisation, single-provider relationship vs distributed approach.
How Telexico approaches phone system comparison transparently
Telexico shares honest comparison data — where hosted VoIP fits, where Microsoft Teams Direct Routing fits, where another provider might suit better. UK provider, Wolverhampton-headquartered, transparent commercials. Free pre-purchase scoping including honest assessment of which deployment model and provider suits.
What you actually get from Telexico.
Honest about scope. No aggressive sales tactics, no surprise renewal jumps, no tier-1 call-centre triage. Real UK engineers, transparent pricing, one provider relationship across the stack.
UK-based provider
Wolverhampton-headquartered. Engineers cover the West Midlands daily; UK-wide install via our partner network. Real UK engineer support, UK data residency, UK contractual relationship — not US-routed SaaS.
Real engineer support
When you call Telexico, you reach someone who can actually fix things. Response SLA backed by real engineering capacity rather than call-centre headcount. Named account manager for ongoing customers.
Free infrastructure review
Every engagement starts with a no-obligation audit of your current setup. Honest recommendation — sometimes that's "stay with your current provider after negotiation." We'd rather be honest than oversell.
Transparent pricing
What you sign for is what you pay — including renewal. No teaser pricing that jumps 30-100% at year two. No mid-contract CPI shock. Predictable multi-year cost from day one.
One provider, one platform
Broadband, hosted VoIP, business WiFi, AI Receptionist, 4G/5G failover, CCTV consolidated onto one Telexico relationship. Single bill, single support number, single engineer when something needs attention.
Migration project-managed
Switching to Telexico isn't DIY. We handle contract audit, notice timing, ordering, parallel running, cutover, old-provider close-out. Customer-visible disruption typically measured in minutes.
Tailored around your business.
Tell us what you have now and what's frustrating you. We'll come back with a tailored review of where we can simplify, consolidate or improve it — no fixed-package pressure, no hard sell.
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Frequently asked questions
What's the biggest decision in comparing UK business phone systems?
Deployment model — hosted VoIP, Microsoft Teams Phone via Direct Routing, or on-premises IP PBX. These are three meaningfully different decisions with different commercial and operational profiles. Most UK SMEs land on hosted VoIP; Microsoft 365-heavy firms increasingly land on Teams Direct Routing; some specific cases justify on-premises PBX.
When does Microsoft Teams Phone make sense?
Microsoft 365-heavy firms where staff already live in Teams for chat and video. Adding phone calls into the same interface delivers real workflow uplift. Direct Routing via Telexico typically 40-70% cheaper per user than Microsoft Calling Plans at firm scale (20+ users). Less compelling for firms with traditional desk-phone-first usage.
What about on-premises IP PBX?
Declining default in 2026 — most UK SMEs benefit from hosted VoIP simplicity. On-premises makes sense for: very specific compliance contexts requiring on-site infrastructure, deep customisation needs, larger operations with in-house IT teams managing their own communications. We're honest during scoping about when on-premises actually fits.
How important is AI receptionist integration?
Increasingly important for customer-facing operations. AI handles routine inbound; reception focuses on complex inbound and in-person work. Integration depth with hosted VoIP varies — Telexico's AI receptionist is integrated natively; bolting AI onto other providers' phone systems is more fragmented operationally.
What about call recording for compliance?
Standard hosted VoIP includes call recording; quality varies in retention policies, search interface, GDPR compliance, regulatory-grade configuration. For regulated operations (financial services, healthcare, legal, accounting), verify recording capability matches your specific regulatory requirements. Not all 'compliance call recording' is genuinely compliance-grade.
Should I bundle phones with broadband?
Usually yes — bundle pricing meaningfully cheaper, operational simplicity has value, support relationship simpler. Especially valuable if you're considering AI receptionist (integrates natively with bundled hosted VoIP). Sometimes broadband and phone contracts end at different times — phased switch acceptable.
What's a fair per-user monthly cost for UK hosted VoIP?
Standard tier typically £8-15 per user per month; premium tier (with extras like compliance recording, deeper integrations) typically £15-25 per user per month. Bundle with broadband meaningfully cheaper than standalone. Microsoft Teams Phone Direct Routing typically £6-10/user/month plus existing Microsoft license. Vary across UK providers; mid-range pricing usually correlates with good UK support quality.
Apply this to your business?
Reading the guide is one thing; applying it to your specific operation is another. Send us your current setup — we'll review what you have, what fits, and where to start. No hard sell, no fixed-package pressure.