Yeastar PBX end of life: moving to the cloud
If you run an on-premise Yeastar PBX (for example an older S-series appliance) that is reaching end of life, you can move to a cloud phone system and keep your numbers. With the UK landline network switching off on 31 January 2027, new on-premise kit is a dead end, so a cloud system is the future-proof path.
Is my Yeastar PBX end of life?
Yeastar's older on-premise appliances reach end of sale and end of support on their own schedules, so an older model may be end of life while Yeastar keeps selling newer hardware and cloud services; confirm the status of your specific model with Yeastar or your installer. Yeastar has been a popular, capable choice for UK small and medium businesses, so this is about ageing units rather than the brand as a whole.
There is also a fixed deadline that applies regardless of model: any Yeastar system using traditional PSTN or ISDN lines is affected when those lines are retired on 31 January 2027. If your appliance is both ageing and on old lines, you have two reasons to plan a move.
On-premise Yeastar vs a cloud phone system
An on-premise Yeastar PBX is an appliance that lives in your building. You own it, power it, maintain it and rely on it being healthy. A cloud phone system moves that function into the provider's platform, so there is no box to look after and your team connect over the internet from desk phones, a mobile app or a browser.
| On-premise Yeastar PBX | Cloud phone system | |
|---|---|---|
| Hardware | On-site appliance you maintain | None needed; app, browser or SIP phones |
| Upfront cost | Capital cost for the appliance | Typically no setup or hardware cost |
| Maintenance and updates | Your responsibility | Managed by the provider |
| Remote and mobile | Possible but you run and secure it | Built in; reachable anywhere |
| Scaling | Limited by the appliance capacity | Add users in minutes |
| 2027 switch-off | At risk if it uses PSTN or ISDN lines | Ready; runs over the internet |
What are your options?
You can keep the existing Yeastar appliance running, which is fine if it is in support and on internet-based lines, but risky once it is end of life or still on PSTN or ISDN. You can replace it with newer on-premise hardware, which keeps you in the business of running and maintaining a box. Or you can move to a cloud phone system and hand that maintenance to the provider, which is what most UK businesses now choose when an appliance reaches end of life.
How do you migrate from a Yeastar PBX?
Migrating off a Yeastar appliance is usually quick and can be done with no downtime. List your current lines, numbers and extensions; choose a provider and plan; order any new numbers and port your existing ones so you keep them; set up users, call menus and business hours; then run the new system in parallel and go live once you are happy.
Your numbers move across through porting, which is normally free. Because Yeastar uses standard SIP, many existing SIP desk phones can be pointed at the new system rather than replaced, although this depends on the handset and provider, and plenty of businesses simply move staff to the mobile app and browser softphone. A good provider handles the porting and setup for you.
Frequently asked questions
Is my Yeastar PBX end of life?
Yeastar's older on-premise appliances reach end of sale and end of support on their own schedules, so some older models may be end of life while Yeastar continues to sell newer hardware and cloud services. Check the status of your specific model with Yeastar or your installer. Separately, any Yeastar system connected to traditional PSTN or ISDN lines is affected by the 2027 switch-off.
Can I keep my number if I move off a Yeastar PBX?
Yes. Number porting lets you keep your existing geographic, 03 or 0800 numbers when you move from a Yeastar PBX to a cloud phone system. The new provider arranges the transfer, it is normally free, and your numbers ring on the new system once porting completes.
Will my handsets work after moving from Yeastar to the cloud?
Often yes. Yeastar systems use standard SIP, so standard SIP desk phones can usually be reconfigured to register with a cloud system, although it depends on the model and the provider. Many businesses also move staff to a mobile app or a browser softphone, so desk phones become optional.
Why move from an on-premise Yeastar PBX to a cloud system?
A cloud phone system removes the on-site appliance and its maintenance, supports remote and mobile working, scales without new hardware, and is ready for the 2027 switch-off. You also get features like auto-attendant, voicemail-to-email, call recording and AI call handling as standard rather than managing them on a box on site.
Do I need to replace my Yeastar PBX before 2027?
If your Yeastar PBX relies on traditional PSTN or ISDN phone lines, then yes, because those lines switch off across the UK on 31 January 2027. After that date you need an internet-based phone service. If the system is also end of life, moving to the cloud solves both issues at once.
Ready to sort your business phones?
Keep your number, go live in minutes, real UK support.