Keep your numbers, modernise calling, and move off legacy lines ahead of the 2027 PSTN switch-off. Teams Voice, SIP trunking, numbers, plans and porting.
Choose what you need — Microsoft Teams Voice calling, SIP trunking, business numbers, call plans, and number porting — with a clear path to migrate away from legacy PSTN/ISDN services ahead of the 2027 switch-off.
Tell us what you’re replacing and how many users/sites you have — we’ll recommend the simplest route.
Answer a few quick questions and we’ll point you to the best starting option.
Guide only – final routing depends on your current setup and number requirements.
Not sure where to start? If you live in Microsoft Teams, begin with Teams Voice. If you have a phone system and need carrier-grade lines, start with SIP Trunking. If you need presence in new regions, start with Business Numbers.
Turn Teams into your business phone: make and receive calls inside Teams, with a setup designed for organisations moving away from desk-phone dependency. (Also known as Microsoft Direct Routing.)
Replace PSTN/ISDN lines with SIP trunks delivered over your internet connection, so your capacity can scale without physical line constraints, supporting continuity and cost efficiency compared to traditional telephony.
Add geographic, non-geographic and freephone numbers – UK and international coverage, with routing options to landlines, mobiles, or your cloud phone system. Options include gold numbers and block ranges.
If you’re with another provider, we can transfer your existing numbers using number porting.
Call plans built around how you actually use the phone, from UK unlimited packages to international destinations, helping you forecast spend and avoid bill surprises.
Move from your current provider without changing the numbers your customers already know. Our team manages the porting process to reduce disruption and protect continuity during migration.
Gain the benefits of advanced telephony services without losing your trusted phone numbers.
A business VoIP phone system carries calls over an internet or private data connection instead of relying entirely on a traditional telephone line. Employees can make and receive business calls using desk phones, computers, mobile applications or Microsoft Teams.
A properly planned migration should keep disruption to a minimum. Before the cutover, users, numbers, devices and call flows should be configured and tested. More complex migrations may be completed in phases or supported by temporary call-diversion arrangements.
One Trusted Partner
We have been helping UK organisations improve their communications and technology since 2003. Our experience covers cloud telephony, connectivity, Microsoft services, managed IT and cyber security.
Here When You Need Us
Speak to a UK-based team that understands your business, your existing phone system and your migration plan. We provide support before, during and after deployment – not just access to a software platform.
Book a VoIP Consultation →
Built for What’s Next
Access to features such as call transcription, conversation summaries, intelligent routing and customer-service analytics. We help you introduce AI in a practical, secure and manageable way.
The UK’s legacy PSTN network is due to switch off by January 2027. If you still rely on PSTN/ISDN (or anything built on it), now is the time to confirm what needs replacing and map a low-disruption migration path.
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