Business phone systems London. Modern telephony for enterprise operations.
Cloud PBX, VoIP, AI-powered systems for London businesses. Migration from BT, 4Com, Virgin, ISDN/PSTN. UK engineer support, plain contracts, AI Receptionist available from £150/month.
- ☁️ Cloud-hosted PBX (no on-site hardware)
- 📱 Desktop & mobile apps for every user
- 🎙 GDPR-compliant call recording
- 📞 Unlimited UK calls (fair-use)
- 🔀 IVR menus & intelligent routing
- 🤖 Optional AI Receptionist (£150/mo)
- 💼 Optional Microsoft Teams integration
- 🔄 UK number porting (5-15 working days)
- 🛡 No CPI+3.9% mid-contract rises
- 🇬🇧 Single named UK engineer support
Phone systems in London: the local picture
In London, where teams are spread across sites, home and travel, a cloud phone system keeps a London 020 presence answering wherever people actually are. It routes calls intelligently between offices and mobiles, handles high volumes with queues and IVR menus, and scales instantly — vital in a market where a business can grow fast. No on-site hardware means opening another London office just means adding users.
From £5 per user, per month.
No PBX hardware to buy and no big upfront cost — cloud phone systems that scale with your team. And because it’s all cloud-delivered, we can have you set up and live within 60 minutes.
System types for London businesses.
Different operations need different phone systems. Honest mapping of what fits where.
Cloud PBX (most common)
Hosted phone system, no on-site server. Standard option for London SMEs (5-200 users). All features bundled, scales by user count. From £12/user/month.
Cloud PBX London →Microsoft Teams Phone
For London businesses already heavily on Microsoft 365. Direct Routing or Operator Connect deployment. Unified Teams + voice.
Teams Phone setup →SIP Trunks (keep existing PBX)
If you already have a working on-premise PBX in London, SIP trunks replace the old ISDN/PSTN line. Cheaper than full replacement.
SIP Trunks detail →AI-powered systems
Phone system with AI Receptionist handling 24/7 routine calls. For London businesses currently missing 20%+ of inbound. Typical payback 2-4 weeks.
AI Phone Systems London →Every district. Every postcode. Every business park.
All E, EC, N, NW, SE, SW, W, WC postcodes covered. Different districts have different sector concentrations — we configure phone systems for how your operation actually works.
City of London (EC1-EC4)
Financial services density, regulated industries, leased-line frequency above UK average. SLAs matter more than headline pricing.
Canary Wharf (E14)
Modern building stock, dense fibre infrastructure, multiple carrier options. Strong 5G coverage. Consultancy and finance SME concentration.
Shoreditch / Tech City (EC2/N1)
Creative, tech, media businesses. Heavy cloud-app usage. Multiple alt-net options including CityFibre and Community Fibre.
West End (W1, WC1, WC2)
Mixed retail, hospitality, professional services. Building stock varies — some postcodes excellent FTTP, others older buildings face install complexity.
King's Cross / Euston (N1/WC1)
Tech and consultancy concentration. Strong fibre infrastructure, multiple carriers. Common managed-office tenants.
South Bank / London Bridge (SE1)
Mixed corporate and hospitality. Newer infrastructure dominates. Strong leased-line availability.
What London businesses on old PSTN/ISDN need to do.
BT/Openreach is switching off the old PSTN/ISDN copper network in January 2027. Every UK business currently on PSTN/ISDN must migrate to a modern VoIP-based phone system before then. London businesses are no exception.
Migration from legacy systems is what we do every week. We handle: existing PBX replacement (Avaya, Mitel, Panasonic, Samsung, NEC), ISDN-to-VoIP migration, number porting from BT/Virgin/4Com/Gamma, staff training, the cutover. Zero downtime — your existing service stays live until the new system is proven.
Sooner is better than later. UK telecom installers will get progressively busier as 2027 approaches. London's install capacity isn't unlimited — book site survey now to lock in install timeline.
What businesses gain by switching to Telexico.
How we differ from the big providers — written plainly, no sales spin.
Send us your current renewal. We'll review what you have, what you pay, and where we can simplify — no fixed-package pressure, no obligation.
Simpler telecoms. Fewer suppliers. Real support.
Send us your current setup. We'll show you where we can simplify, consolidate or reduce cost — no rigid pricing, no hard sell.
AI receptionist answers 24/7, captures the lead and sends it straight to your team.
Broadband, phones, AI, WiFi, failover and CCTV — one bill, one UK team.
We design around your team, your hours and your customers — not a generic package.
⚡ 30 seconds to share your details · 💬 We respond promptly · 🔒 No hard sell
The full Telexico stack for London businesses.
One UK provider for broadband, phones, AI, failover, WiFi. Single bill, single contract, single named UK engineer.
Business Broadband London
FTTP, leased lines, 4G/5G failover. Multiple carriers, vendor-agnostic quoting.
Leased Lines London
Dedicated symmetric fibre with contractual SLA. 99.95% uptime, 4-hour fix-time.
Business Phone Systems London
Cloud PBX, VoIP, AI. Migration from BT/4Com/Virgin handled. From £12/user/month.
Cloud PBX London
Hosted phone system, no on-site hardware. From £12/user/month all-inclusive.
VoIP Phone Systems London
Real UK pricing, no CPI rises. UK number porting included.
AI Phone Systems London
24/7 AI call handling. Recover the 30-40% of calls currently missed.
Review my current setup.
Not ready to switch yet? Send us your current contracts, bills, or photos of your existing equipment. We'll review what you have, what you're paying, and where you could simplify, consolidate or improve — without any pressure to buy anything from us.
We benchmark your existing broadband, phones, mobile and IT against current UK market pricing and what your business actually needs.
Real engineer review of your current connectivity, voice setup, WiFi, security and continuity — strengths, gaps, and where you're overpaying or underprotected.
We tell you honestly what's available at your postcode — FTTP, leased line, alt-net carriers — and which makes commercial sense for your operation.
For businesses still on ISDN or aging on-premises PBX — an honest cost-and-feature comparison before the 2027 BT switch-off forces a rushed decision.
No hard sell. No fixed package pressure. If we're not a better fit, we'll tell you straight — and recommend what is.
Frequently asked questions
What does a business phone system cost in London?
Telexico starts at £12/user/month all-inclusive — hosted PBX, mobile apps, basic call recording, unlimited UK calls (fair-use), UK number porting, UK engineer support. Major providers (BT, Virgin, 4Com) typically £17-25/user/month plus CPI+3.9% annual rises and feature add-ons. For a typical 10-user London SME, 24-month saving vs BT is around £3,200.
How quickly can you install a phone system in London?
5-14 working days typical for standard cloud-based system with number porting. New business (no porting) installs can complete in under a week. Multi-site rollouts, custom CRM integration, or specific compliance setups extend to 3-6 weeks. Realistic timelines given upfront — no "we'll be in touch in a few weeks" open-ended commitments.
Can I keep my London phone numbers when switching?
Yes. UK number portability is statutory — any 020 (or other London area code) numbers can be ported to Telexico in 5-15 working days. Process: we set up new system in parallel with existing service, test it, port numbers on scheduled date. Zero downtime, no lost calls.
What about the 2027 PSTN switch-off?
BT/Openreach switches off the old PSTN/ISDN copper network in January 2027. Every UK business currently on PSTN/ISDN must migrate before then. London businesses are no exception. Migration is what we do every week. Sooner is better — UK telecom installers will get progressively busier as 2027 approaches.
What types of phone systems are available for London businesses?
Five main types: (1) Cloud-based hosted PBX — most common, no on-site hardware. (2) On-premise PBX — traditional, for very large or specific compliance needs. (3) Hybrid systems — transitional setup. (4) Microsoft Teams Phone — via Direct Routing or Operator Connect. (5) AI-powered phone systems — AI Receptionist for routing and after-hours. Most London SMEs choose cloud-based VoIP with optional AI add-on.
Do you cover all of London?
Yes — every London postcode (E, EC, N, NW, SE, SW, W, WC) and surrounding areas. Cloud-delivered phone systems work anywhere with business broadband. one of the most competitive UK fibre markets — Openreach FTTP, CityFibre rollout, Hyperoptic in multi-dwelling buildings, Community Fibre, Virgin Media Business, Colt for high-bandwidth leased lines, which means most London businesses have multiple fibre options at their postcode for reliable VoIP delivery.
Can I integrate Microsoft Teams with the phone system?
Yes. Teams Phone integration via Direct Routing (cheaper, more configuration) or Operator Connect (simpler, slightly higher monthly cost). We recommend the right approach for your Microsoft tenant setup — typical add-on cost £3-8/user/month on top of base VoIP.
How does Telexico support London businesses given you're Wolverhampton-based?
For physical phone system install in London, the work is delivered through our national install partner network. Most of what makes a modern business phone system is cloud-delivered (hosted PBX, mobile apps, AI Receptionist) — works the same anywhere in the UK. Ongoing support is via single named UK engineer for your account, direct line, real human.
Tailored around your business.
Send us your current setup. We'll review what you have, what you pay, and where we can simplify, consolidate or improve it — no hard sell, no fixed-package pressure.