Find out exactly how much you could save by giving your loved one a UK landline number instead of your mobile.
Most prisoners can call once or twice per day
Typical calls run 10–30 minutes
At the same call credit spend, the prisoner gets 55% more minutes by calling your landline number.
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Get your UK landline number in minutes.
How many calls per week and how long each call typically lasts
Mobile: 5.5p/min · Landline: 2.48p/min (weekday rates)
Monthly and annual savings, including BluePhone subscription cost
Rates charged from the prisoner's credit account per minute
| Number type | Weekday | Weekend | Saving vs mobile |
|---|---|---|---|
| UK mobile (07…) | 5.5p/min | 3.6p/min | — |
| UK landline (01…/02…) | 2.48p/min | 2.2p/min | 55% cheaper |
A minimum charge of 10p applies per call. Rates are set by HMPPS and apply across all ITS-connected prisons in England and Wales.
The difference between a mobile call and a landline call from prison isn't just a few pence per minute — it's the difference between your loved one being able to call every day or running out of credit by Thursday. When you multiply the rate difference across weeks and months, the numbers become significant.
HMPPS sets these rates nationally for England and Wales. The landline rate has always been lower than the mobile rate because the underlying call termination costs differ. BluePhone exploits this gap legally and simply: you get a real UK landline number (01/02 prefix), give it to your loved one to add to their prison phone list, and they call at the cheaper rate.
The calculator above uses a 4.33-week average month and assumes a primarily weekday call pattern. Weekend calls are charged at lower rates (3.6p mobile, 2.2p landline), so if your loved one calls mainly at weekends, your actual savings will be proportionally smaller — though the landline is still cheaper either way.
BluePhone costs £15/month (or £149/year). The call credit saving in the calculator is the gross saving — the net saving is that figure minus the subscription. At around 4–5 calls per week of 15–20 minutes each, the gross saving typically exceeds the subscription cost, making BluePhone net-positive financially.
Even at lower call volumes, BluePhone provides value beyond the raw numbers: you can be anywhere in the world and still receive calls, your loved one doesn't need to spend their limited credit calling international rates, and the call reaches you reliably on your smartphone just like any other call.
The money saved in call credit stays in your loved one's prison phone account — meaning more minutes to talk. If they're currently calling at 5.5p/minute and switch to 2.48p/minute, the same credit amount buys them more than twice as many minutes. That's 443 extra minutes of talking time per year for every 200 minutes they currently call.
Alternatively, the prisoner can spread their calls more evenly through the week, or family members on a tight budget spend less on credit top-ups while maintaining the same amount of contact.
The rates above are the HMPPS 2025 national rates for ITS (Unilink) connected prisons in England and Wales. They apply to the vast majority of UK prisons. A small number of private prisons may vary slightly. Scotland and Northern Ireland operate separate systems.
The 10p minimum charge applies to calls shorter than approximately 4 minutes (at the landline rate). For calls of typical length (10–30 minutes), the per-minute rate dominates the cost and the minimum charge is not a significant factor. For very short calls (under 4 minutes), add approximately 10p per call to the landline cost.
BluePhone charges a flat monthly subscription (£15/month or £149/year). There are no per-call or per-minute charges on the BluePhone side. The call credit cost shown in the calculator is what comes out of your loved one's prison phone account — that's what you're saving by switching them to a landline number.
Yes. Your BluePhone landline number can be added to any number of prison phone lists across different prisons. Multiple people can call the same number — though only one call at a time will connect. This is useful if you have more than one loved one in prison.
Get your UK landline number in minutes. Give it to your loved one — they call at the cheaper landline rate, you answer on your phone anywhere in the world.