
BT One Phone Is Closing
Continue on a Mobile Service Built the Same Way
A true mobile UCaaS successor to BT One Phone.


We maintain continuity on the network you already trust.

Built around the way your teams
already work

Mobile+ SIM
Business calling features built directly into a physical SIM - no additional equipment required.

Mobile+ eSIM
Business calling features built into an eSIM for compatible devices - no physical SIM swap needed.

Mobile+ App
Access your business phone system through the Mobile+ app where a SIM change isn’t required.

Softphone
Make and receive calls from your laptop or computer using a simple softphone app.

Desk phone
Mobile+ integrates with most desk phones supplied by BT. It should be possible for us to switch your phone without physical interaction.
For SIM and eSIM users, calls are made through your phone’s native dialler - not a separate calling app – so the experience stays familiar.
What happens Next
Your migration journey
Understand your current setup
Feature parity agreed
You approve before anything proceeds
Move a small group first, then roll out
+ activation
+ go-live
Managed end-to-end
Frequently Asked Questions
I’ve never heard of PiPcall?
PiPcall is a UK communications specialist with over 15 years’ experience delivering business phone systems and mobile services. We design and build our own proprietary software here in the UK, specialising in business-grade mobile solutions.
We can provide a genuine like-for-like BT One Phone service on the same mobile network, something few providers can deliver.
Will my numbers transfer?
Yes – all mobile and geographic numbers port across. We handle the entire process.
How long will it take?
Most SME businesses are live within 5–7 working days. Corporate accounts typically 2–3 weeks.
Will it cost more?
Our pricing is competitive with BT One Phone. We’ll provide a clear proposal before you commit.
What if something goes wrong?
Dedicated UK support team. Early monitoring for 14 days after go-live.
Can I keep my existing phones?
Yes – desk phones work, and mobile users keep their handsets. eSIM means no SIM swap needed for compatible devices.
What happens if I do nothing?
BT will cease BT One Phone by 30 September 2026. Without a migration, your business phones will stop working.
Will my users need retraining?
In most cases, no. The native dialler experience remains the same.
Do I need new SIMs?
Most customers switch by replacing their existing SIM with a Mobile+ SIM or activating an eSIM. We’ll confirm the best option during your migration review.

Review Your Current Setup

