ClickCease

BT One Phone Is Closing
Continue on a Mobile Service Built the Same Way

Designed for mobility. Built on carrier-grade mobile infrastructure.

A true mobile UCaaS successor to BT One Phone.

Why PiPcall is a like-for-like replacement for BT One Phone

PiPcall is a UK communications specialist with over 15 years’ experience developing and delivering business phone systems and mobile services.
PiPcall provides a genuine like-for-like BT One Phone service on the same mobile network - preserving the mobile-first structure businesses depend on. Few providers can deliver mobile UCaaS at network level without relying on VoIP apps or desk-based infrastructure.

We maintain continuity on the network you already trust.

Comparison of BT One Phone to Mobile+
Core functionality
BT One Phone
Mobile+
Mobile Network
Business DIDs
Hunt Groups
Voicemail
Native Dialler Calling
SIM-Based UCaaS
eSIM Support
Limited
Dedicated Controller App
Softphone Support
Desk Phone Support
Centralised Call Recording
UCaaS Mobile App
Admin Portal
Basic
Enhanced
UK-Based Support
Standard
Dedicated
Mobile+ provides the same core mobile UCaaS functionality, with greater visibility and control for administrators.
"The transition felt seamless from start to finish. We kept our mobile service and numbers exactly as they were, our team didn’t have to change how they work, and we reduced our monthly costs in the process. It genuinely felt like a straightforward upgrade rather than a switch.”
Operations Director

Built around the way your teams
already work

Mobile+ gives you five ways to use your business phone system - depending on how your devices are set up.

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.

Our Service & Cost Overview

We provide:
A mobile UCaaS service aligned to BT One Phone’s structure
Continuation on your existing mobile foundation
Clear and transparent pricing
Lower monthly costs are common. We provide a clear comparison before any decision is made -
so you can move forward with confidence.

What happens Next

Your migration is managed through a clear, structured process:

Your migration journey
Configuration review

Understand your current setup

Like-for-like confirmation

Feature parity agreed

Cost comparison
quote

You approve before anything proceeds

Pilot option

Move a small group first, then roll out

Porting

+ activation

+ go-live

Managed 
end-to-end

Switchover timelines depend on number porting and configuration requirements.
We work directly with you to minimise disruption and maintain service continuity throughout the transition.

Frequently Asked Questions

I’ve never heard of PiPcall?

Will my numbers transfer?

How long will it take?

Will it cost more?

What if something goes wrong?

Can I keep my existing phones?

What happens if I do nothing?

Will my users need retraining?

Do I need new SIMs?

Review Your
Current Setup

To provide further information and outline how your service can continue, we’ll need a few basic details about your current configuration.
Request more information
Complete the form and a switch over specialist will contact you to confirm your setup and next steps. Submitting this form does not change or cancel your BT One Phone service.
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