Move your existing phone system to VoIP without dropped calls, lost numbers or a support desk that goes quiet halfway through the cutover.
Every migration starts with an audit of your current lines, extensions and call flows, so nothing gets missed on cutover day.
Existing landline and mobile numbers are ported across on an agreed date, with a fallback plan if anything needs extra time.
The same team that plans your migration configures, tests and supports the new system afterwards — no handover gaps.
Migrating a phone system sounds simple until you're the one doing it — a poorly planned VoIP migration can mean lost calls on cutover day, extensions that stop ringing, voicemail greetings that vanish, or a number that gets stuck in porting limbo for weeks. Proper VoIP migration services exist precisely because moving from an analogue line, an ISDN system, an ageing on-premise PBX, or even a previous VoIP provider that hasn't worked out, involves more moving parts than most businesses expect: number porting authorisations, call routing rebuilds, hardware compatibility checks, staff training and a cutover window that has to be timed around your business, not your provider's schedule.
The timing pressure is real too. UK providers are progressively retiring the old analogue and ISDN phone network, so most businesses still on a traditional line will need to migrate at some point regardless of preference — the only genuine choice is whether that migration happens on your own terms, planned and tested in advance, or as an emergency scramble once an existing line stops being supported, which is invariably more expensive and more disruptive than a migration planned months in advance. A migration service done properly turns a legal deadline into a controlled project with a fixed date and a fallback plan, rather than a surprise.
The businesses that get burned by a bad migration usually share the same pattern: a provider who quoted quickly without auditing the existing setup, a porting request submitted with no one chasing it, and a cutover date chosen without checking whether it clashed with a busy trading period. The fix isn't complicated — it just requires someone to actually do the groundwork before flipping the switch, rather than treating VoIP migration services as a one-afternoon job that ends the moment new handsets are plugged in.
Every migration begins with a discovery call and a technical audit of what you have today — how many lines and extensions, which numbers need porting, what call flows and auto-attendants currently exist, and which of those need to be rebuilt rather than just copied across. We map every existing feature against the new platform before quoting, so there are no surprise gaps discovered after cutover.
Porting a UK landline or mobile number between providers has a defined process and a realistic timeline, usually one to three weeks depending on the number type and losing provider. We submit the porting request, track it, and chase delays on your behalf, so you're not the one on hold with your old provider trying to find out why a number hasn't moved.
We schedule the actual switch for a quiet period in your business, run the new system in parallel wherever possible, and keep the old line active until the new one is proven to be working, rather than cutting over blind and hoping nothing breaks.
Auto-attendants, ring groups, voicemail-to-email and out-of-hours routing rarely transfer automatically between systems. We rebuild each one deliberately, testing every menu option and extension before your team relies on it.
If your current system feeds call data into a CRM, helpdesk tool or call recording archive, we check that integration before migration day rather than after, so reporting and compliance records don't have an unexplained gap around the cutover date.
A complete, managed migration from your existing phone system to VoIP.
A full review of your existing lines, extensions and call flows, with a written migration plan and realistic timeline before anything is switched.
Every port request submitted, tracked and chased on your behalf, so you keep the numbers customers already know.
Auto-attendants, ring groups, queues and voicemail rebuilt and tested against your original setup before go-live.
A scheduled cutover date, with the old line kept live wherever possible until the new system is proven stable.
Your team is shown how to use the new system before day one, with the same support desk on hand for anything that needs adjusting afterwards.
We keep your existing line active until the new VoIP system has been tested end-to-end, so there's always a fallback if something needs more time to bed in.
Every user, extension and call flow is tested against a checklist before we call a migration complete, not just the main office number.
From your first call to a fully tested, live VoIP system.
We review your current lines, extensions, numbers and call flows in detail before quoting anything.
We agree a migration plan, porting timeline and cutover date that fits around your business, not the other way round.
Numbers are ported, call flows rebuilt and tested, with the old line kept live as a safety net until we're confident.
Staff training and ongoing support after go-live, so any teething issues are resolved quickly.
We treat migration as a project with a plan and a checklist, not a switch you flip and hope for the best. Every migration starts with a proper audit, so we know exactly what needs to move before we quote or schedule anything.
Number porting is tracked and chased by us, not left for you to follow up with your old provider — porting delays are one of the most common causes of a stalled migration, and we manage that process directly.
We keep your existing line active until the new system is tested and proven, so there's always a safety net if something needs more time, rather than a hard cutover with no way back.
Staff training happens before go-live, not after — the biggest cause of a migration feeling like it "went wrong" is a team that was never shown how to use queues, transfers or voicemail on the new system.
As an IT support provider first, your migrated phone system sits under the same support desk as the rest of your IT, so any issue afterwards is one call, not a search through separate supplier contracts.
We're also platform-independent — we recommend the VoIP platform that suits your call volume, budget and existing hardware, rather than pushing a single product because it pays the best commission.
Finally, we're honest about timelines. If a number is likely to take three weeks to port because of who your current provider is, we tell you that up front rather than promising a date we can't guarantee, so you can plan around it with customers and staff instead of being caught out.
We treat every migration as a project with a plan, not a leap of faith.
We map your existing system in full before proposing a plan, so there are no surprises once the migration begins.
We manage porting requests directly with the losing provider, rather than leaving you to follow it up yourself.
We don't switch off your existing service until the new one is proven, so there's always a fallback.
We test every user and call flow against a checklist before calling a migration complete.
A named contact throughout your migration, not a ticket queue you have to explain your situation to repeatedly.
Your team knows how to use the new system on day one, not after a week of confused phone calls.
We recommend whichever VoIP platform genuinely fits your call volume and budget, not a single fixed product.
The same team managing your migration also supports the phone system afterwards, under your existing IT plan.
A clear quote agreed after the audit, so there are no surprise charges once the migration is under way.
The cost of VoIP migration services depends on how many lines and numbers need porting, how complex your existing call flows are, and whether any on-site hardware needs replacing. Straightforward migrations for a small office with a handful of numbers are typically quick and low-cost; multi-site businesses with complex call routing or contact centre queues take longer to plan and test properly. We scope an exact, fixed quote after the initial audit rather than publishing a generic price list that won't reflect your setup — get in touch for a free consultation and a clear migration plan.
The most common failure point in a DIY or poorly managed migration is number porting submitted at the last minute, without checking the exact account details the losing provider requires — a mismatched company name or account number can bounce a porting request and add weeks to the process. The second most common issue is call flows copied across in outline but not tested in detail, so a menu option that used to route to a specific person or team silently stops working after cutover, and nobody notices until a customer complains. The third is a hard cutover with no fallback: the old line is cancelled the same day the new system goes live, so if anything doesn't work as expected there's no way to fall back while it's fixed. We plan around all three as standard, which is why our migrations rarely produce the horror stories that prompt businesses to search for a proper VoIP migration service in the first place.
Ask specifically how number porting is managed — some providers leave the losing-provider chasing entirely to you, which is where migrations commonly stall for weeks. Ask whether your old line stays active during the switch, and whether every call flow and extension gets tested individually before go-live, not just the main office number.
Timing matters: plan a migration around your business calendar, not the provider's availability, and build in a buffer for porting delays, which are common and rarely the provider's fault.
Getting started: we offer a free consultation and system audit before any commitment, so you know exactly what a migration involves and what it will cost before agreeing to anything.
Delivery model
Migrations planned and delivered remotely across the UK, with London on-site visits available for hardware installs.
voip migration services
Planned, managed migration from analogue, ISDN, on-premise PBX or another VoIP provider onto a properly configured cloud phone system.
voip migration uk
Remote-first VoIP migration and number porting for UK businesses of every size, with London on-site coverage for hardware installs.
Got questions about migrating to VoIP? Here are the ones we're asked most.
Most small business migrations complete within one to three weeks, largely dictated by number porting timelines. Complex multi-site migrations with contact centre queues can take longer to plan and test properly.
No, in almost all cases we port your existing landline and mobile numbers across as part of the migration, with a planned cutover so there's no gap in service.
We keep your existing line active in parallel until the new VoIP system is proven stable, so there's always a fallback if connectivity or configuration needs more testing.
Yes, we regularly move businesses between VoIP providers when a current one is underperforming, keeping numbers and configuration intact throughout the switch.
Not necessarily. Existing compatible handsets can often be reused, or your team can use a softphone app on a laptop or mobile with no new hardware at all — we'll confirm compatibility during the audit.
Cost depends on the number of lines, numbers to port and the complexity of your existing call flows. We scope an exact, fixed quote after a free audit rather than a generic price list.
No, multi-site businesses can migrate in phases, site by site, if that reduces risk or fits budget timing better — we'll agree a sequence that suits your business during planning.
Yes, and we provide it before go-live as standard. A migration that changes the phone system without showing staff how to use queues, transfers and voicemail is the most common reason a switch feels like it went badly.
Limited time offer — valid until 31/05/2026
We believe that communication is key to any successful partnership. Submit your details and one of our friendly team members will be in touch with you shortly.
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