Question 1

Why is BT One Phone closing?

Accepted Answer

BT has decided to retire the One Phone platform as part of a broader portfolio simplification. The service will close in December 2026. PiPcall is here to ensure customers can transition smoothly to an equivalent service.

Question 2

I've never heard of PiPcall — who are you?

Accepted Answer

PiPcall has been delivering mobile-native business communications for over 15 years, trusted by over 1,000 businesses across the UK. Our Mobile+ platform was purpose-built to replace services like BT One Phone — same mobile network, same number porting, with a modern platform on top.

Question 3

What is Mobile+ and how does it replace BT One Phone?

Accepted Answer

Mobile+ is PiPcall's mobile-native UCaaS platform. It provides the same core functionality as BT One Phone — mobile business calls with DDI numbers, call routing, admin controls, and UK support — plus additional features like eSIM, mobile apps, desktop softphones, and real-time analytics.

Question 4

Will there be any disruption to my service?

Accepted Answer

We plan migrations to minimise disruption. Number porting is scheduled outside peak hours, and we run parallel testing before cutover. Most users experience zero downtime. Your team keeps working as normal throughout.

Question 5

Will my business phone numbers change?

Accepted Answer

No. All your existing DDI numbers will be ported across to Mobile+ as part of the managed migration. Your customers and contacts will continue to reach you on the same numbers.

Question 6

Do my team need new phones or devices?

Accepted Answer

No. Your team can continue using their existing handsets. Mobile+ works with physical SIMs, eSIMs, mobile apps, desktop softphones, and desk phones — so you choose the best fit for each user.

Question 7

Can we trial Mobile+ before committing?

Accepted Answer

Yes. We offer flexible contracts so you can trial the service with confidence. Speak to our team about the best option for your business.

Question 8

How long does the migration take?

Accepted Answer

Most migrations are completed within 2–4 weeks, depending on the size of your organisation and complexity of your setup. We handle the configuration, number porting, and testing — your team just carries on working.

Question 9

What does the migration cost?

Accepted Answer

There is no migration fee. We provide a transparent cost comparison as part of the process so you can see exactly what you'll pay on Mobile+. Most customers see comparable or lower costs.

Question 10

What if I have a complex setup with multiple sites?

Accepted Answer

We specialise in complex migrations. Our config review stage maps your entire setup — multiple sites, call groups, routing rules, and user permissions — and replicates it on Mobile+.

Question 11

What support do I get after migration?

Accepted Answer

You get ongoing UK-based support from a dedicated account team. We don't hand you off to a call centre — you'll have direct access to people who know your setup.

Question 12

What happens if I do nothing before December 2026?

Accepted Answer

If you don't migrate before the BT One Phone closure date, your service will be discontinued. We strongly recommend starting the process early to ensure a smooth, pressure-free transition.

Feature	BT One Phone	Mobile+
Mobile-native business calls
DDI number porting
Call routing & hunt groups
Voicemail & call transfer
Admin portal
SIM-based delivery
eSIM support
Mobile app (iOS & Android)
Desktop softphone
Desk phone support
Call recording	Add-on
Real-time analytics
UK-based support
Flexible contracts
Managed migration	N/A

BT One Phone is Closing. Your Mobile Service Doesn't Have To.

Trusted by Over 1,000 UK Businesses

Everything You Have. Plus More.

What Stays the Same

What Gets Better

Everything Your Business Needs

Business-grade mobile on the same network

A Structured Transition in 6 Steps

Config Review

Like-for-Like Build

Cost Comparison

Agreement

Activation

Go Live

Config Review

Like-for-Like Build

Cost Comparison

Agreement

Activation

Go Live

BT One Phone vs Mobile+

Simple, All-Inclusive Plans

Every Plan Includes

Frequently Asked Questions

Don't Wait Until the Last Minute