Business VoIP Phone Services
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.
Ofcom-registered VoIP provider • Global services • Number porting
Phone services that fit your setup
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 and we’ll recommend the simplest route.
Which VoIP route should you start with?
Answer a few quick questions and we’ll point you to the best starting option.
Your route
Guide only – final routing depends on your current setup and number requirements.
Phone Service Solutions
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.
Microsoft Teams Voice Calling
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.)
- Best for: Teams-first businesses
- Outcome: fewer apps, simpler calling experience
- Next step: share user count + call requirements for a quote
SIP trunking (replacement for legacy lines)
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.
- Best for: existing phone systems that need modern lines
- Outcome: scalable concurrent calling
- Next step: tell us how many channels you need
UK & international business numbers
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 & Tariffs
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.
- Best for: busy teams, customer service, multi-site calling
- Outcome: predictable monthly communications spend
- Next step: share typical destinations/minutes
Number Porting (keep your numbers)
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.
What happens next
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.
- Quick call (15 minutes): what you have today, what’s changing, user/site count
- Recommendation: Teams Voice vs SIP trunks vs numbers + call plans
- Migration plan: number porting steps, cutover approach, continuity checks
- Go live + support: confirm routing, call quality, and success criteria
Rated Excellent on Trustpilot
Sales (new enquiries)
Book a video call (Sales)Enquiry & Support
Use the contact form for IT support enquiries, plan questions, or audit requests.