Clear calls, every time.
Your calls travel on our own network, which we monitor and manage ourselves, so the people who run it look after your call quality.
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Keep your phone system. Put our network behind it.
Keep the phone system your team already knows and put a network we own and run behind it. Global numbering, clear call quality and capacity that grows with your business.
Your IP PBXYour handsets and features stay as they are
Run by Infinitel
Global numberingBuy local, mobile, national and toll-free numbers in 140+ countries
Call qualityCalls routed via local points of presence, for reliability and very low latency
Effortless scalabilityFrom one to tens of thousands of simultaneous calls
Landlines and mobilesWherever your people and customers are
Business calling, carried on our own network.
Every call runs on a voice network we own and run, from seven data centres. That’s how we keep call quality high, support you directly and add capacity as your business grows.
Resilience built in.
Seven data centres share the load. Plan an alternative route for your priority numbers, to a mobile or another site, so customers still get through if an office goes offline.
Room to grow.
Scale from one to tens of thousands of simultaneous calls. Add channels in affINITy as you grow, and pay only for the calls you handle at once.
Local numbers in 140+ countries.
Give customers a local number wherever you sell, all delivered to the same phone system.
Works with the phone system you already have.
3CX, Microsoft Teams through Direct Routing, and most IP PBXs. Keep your handsets, your call handling and your investment.
One team for every call.
The team that runs the network supports your service directly, with a 15-minute response and a 4-hour repair target for business-critical issues.
Self-service when you want it. Specialists when you need them.
Set your trunk up yourself in the portal, or hand it to our voice specialists. Either way the calls run on a network we own and run.
Keep the investment you’ve made
Retain compatible PBX equipment and the call handling your team already uses. Infinitel supplies the SIP connection, business numbers and external voice routing; PBX features and maintenance remain with your phone-system service.
Effortless scalability
Capacity sized around the calls you handle at once, from one to tens of thousands of simultaneous calls, changed when your business changes rather than when a contract allows it.
Built for the phone system you run.
Most buyers ask one question first: will it work with our system? Here is the short answer.
3CX.
Tested against every new 3CX release, and set up for 3CX by a 3CX Titanium Partner.
SIP trunks for 3CXMicrosoft Teams.
Connect Teams through Direct Routing and Microsoft-certified AudioCodes Session Border Controllers, hosted and managed by us.
Teams Direct RoutingYour IP PBX.
Infinitel SIP trunks work with most IP PBX systems. Our voice specialists help with the settings, and your maintainer keeps looking after the PBX.
Talk to a SIP specialistNumbers wherever you do business.
Infinitel provides local and international numbers in 140+ countries, subject to availability, number type and local requirements.
Keep the numbers your customers know
Porting is free for UK numbers and many international ranges. Where a country or number type carries a charge, you’ll know before the port goes ahead.
A local presence where you need one
Full PSTN replacement is available in supported markets, subject to local service and emergency-calling requirements. What we provide differs by country: numbers, numbers and local calls, or full local service.
Know what you’ll pay.
Every charge is listed separately, so you can compare like for like.
- Pay-as-you-go channels
- £4.95 per channel per month, plus the calls you make: UK landlines from 1p a minute, UK mobiles from 7.5p a minute. Rates depend on the call’s direction, the number used and its destination.
- Unlimited channels
- £8.95 per channel per month, including calls to UK landlines (01 and 02 numbers) and to UK mobiles on Vodafone, O2, EE and Three, within the fair use policy below.
- Numbers
- £1.95 per number per month.
- Porting
- Free for UK numbers and many international ranges. Where a country or number type carries a charge, you’ll know before the port goes ahead.
- Minimum term
- One month (30 days).
All prices exclude VAT and were checked on 19 September 2026. Unlimited channels include 3,000 UK landline minutes and 2,000 UK mobile minutes per channel each month, pooled across all your channels: 10 channels share 30,000 landline and 20,000 mobile minutes. They’re for calls made by people, not automated or non-human callers. Calls to other UK and international numbers aren’t included and are charged at standard rates.
Support from the people who run the network.
24/7 cover for business-critical faults. Call us and you get a 15-minute response to a phone call and a 4-hour repair target, backed by service credits. Everyday changes are yours to make in affINITy, and our voice specialists are a call away when you want a hand.
Customer story
We’ve been a customer of Infinitel for almost 4 years and have had no issues with their services at all. A very reliable service and great customer support when needed.
Craig Ross-KennedyIT Manager, Broomwood
Your questions, answered.
Will SIP trunking work with our PBX?
Infinitel SIP trunks work with most IP PBX systems. Provision your trunk through our self-service portal and connect it to your phone system, with our voice specialists available to help.
How many channels do we need?
A channel carries one simultaneous call. Your busiest calling periods are a better guide than employee count alone; we’ll help you find a sensible starting capacity.
Can we keep our existing numbers?
Yes. Porting is free for UK numbers and many international ranges. Where a country or number type carries a charge, you’ll know before the port goes ahead. Our voice team coordinates the transfer and your new call routes. Portability and timing depend on the number and your current provider, which may apply its own charges.
How is emergency calling handled?
Your service needs the correct emergency-calling address and location information. Requirements vary by country, and calls rely on working connectivity and power. Infinitel explains the arrangements for the countries in your quote.
Do you offer failover if our office goes offline?
Yes. Plan an alternative route for your key numbers, such as a mobile or another site, so calls keep reaching you if a location loses power or internet access. We set it up with you for the numbers that matter most.
We resell 3CX. Can we sell your SIP trunks?
Yes. Partners provision trunks and allocate numbers for their customers in affINITy.
Put Infinitel voice behind your PBX.
Keep your phone system and get a calling service that can grow with you. Compare channel options, business numbers and calling costs with our SIP specialists, then start with straightforward self-service provisioning and support when you need it.