Alternatives to BT Digital Voice: Your Options Before the PSTN Switch-Off
Written by George, on . Last updated The UK’s traditional landline network – the Public Switched Telephone Network (PSTN) – is being switched off by January 2027. For decades, PSTN lines have relied on copper cables to carry analogue voice calls. But as technology has evolved, maintaining this ageing infrastructure has become increasingly costly and inefficient.
In its place, phone calls are moving online.
“Digital Voice” is BT’s brand name for a voice-over-internet service. Instead of using copper wires, calls are sent over your broadband connection using Voice over Internet Protocol (VoIP) technology.
Digital voice services can offer clearer call quality, improved reliability in many situations, and new features such as advanced nuisance call protection and app integrations. As the 2027 deadline approaches, many households are starting to ask: is BT Digital Voice the best option – or is there a better alternative?
Why look for alternatives to BT Digital Voice?
While BT Digital Voice is the default option for BT broadband customers, it’s not the only choice – and it may not be the most flexible or cost-effective one.
Bundling & lock-in
BT Digital Voice only works with BT broadband. It’s tied to BT’s router and ecosystem, meaning your phone service is effectively locked to BT.
Independent providers, by contrast, typically allow you to use any broadband provider. This gives you the freedom to shop around for better broadband deals without affecting your phone service.
Cost & call charges
BT’s pricing can be a sticking point for many households:
- Pay-As-You-Go: around £28.40 per month with no included minutes. Calls are charged at 20.9p per minute.
- “Unlimited” plan: around £46.40 per month – but subject to a 1,000-minute fair-usage cap.
For people who make regular calls, especially to mobiles or internationally, these charges can add up quickly. Specialist VoIP providers often offer bundles with inclusive minutes at lower monthly costs.
Limited features
BT provides basic call screening features. However, specialist digital landline providers are going further. For example, some services include:
- Advanced scam blocking
- AI-powered fraud monitoring
- Call introductions to identify unknown callers
- Trusted-person alerts for suspicious calls
For elderly households or anyone concerned about scam calls, this difference can be significant.
Closed ecosystem
Despite the branding, BT Digital Voice is essentially standard VoIP technology. The key difference is that it’s restricted to BT hardware and apps. You can’t easily take your number or service elsewhere without going through a full switch process, and you have limited control over compatible devices.
Open VoIP systems typically allow far more flexibility.
Evaluating BT Digital Voice – Pros and cons
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Alternative Providers To BT Digital Voice
If you’re researching alternatives to BT Digital Voice, independent VoIP providers offer some of the most flexible and cost-effective options available. You can read our full comparison page here.
Independent VoIP providers
Phonely
Phonely offers a standalone digital landline service that works with any UK broadband provider.
Key features:
- Inclusive call bundles rather than high per-minute charges
- Transparent monthly pricing
- Ability to keep your existing landline number
- Designed specifically for elderly households and scam-conscious users
- CallGuard protection, including:
- Scam blocking
- Anti-fraud introductions
- Trusted-person alerts
Phonely focuses on simplicity, safety and predictable costs. Click here for the full comparison between Phonely and BT’s digital voice.
Plexatalk
Plexatalk is a UK-based budget VoIP provider aimed at cost-conscious or light-use households
Service overview:
- Internet-based VoIP landline (customer supplies broadband)
- No contract – monthly rolling
- Entry pricing from £4 per month (100 UK minutes)
- “Unlimited” UK calls at £12.50 with a 2,000-minute fair-use cap
- Supports multiple devices per number
Scam protection:
- Basic manual call blocking only
- No proactive scam detection or AI monitoring
Hardware:
- No free hardware included
- ATA adapter available for around £50
Plexatalk is positioned as a low-cost, flexible option, but it requires more self-management and does not include advanced fraud protection.
Andrews & Arnold (A&A)
Andrews & Arnold (A&A) is a technically focused UK ISP offering highly configurable VoIP services suited to confident users.
Pricing structure:
- Monthly line rental approximately £1.20–£1.50 per number
- Pay-as-you-go per-minute billing
- Typically one-month rolling contract
Core features:
- SIP-based VoIP service
- Full control panel access for technical configuration
- Advanced routing and call handling rules
- Voicemail with email delivery
- Detailed call logs and CLI control
Scam protection:
- No built-in AI scam filtering
- Manual call barring and blacklist configuration available
A&A is well-regarded for reliability and transparency but is better suited to technically confident users who want full control over configuration.
Digital voice from other broadband providers
Sky, TalkTalk, Vodafone and EE all offer digital voice services as part of their broadband packages.
While many still bundle voice and broadband, pricing and features vary. Once the PSTN is switched off, you are free to choose any provider – you are not required to stay with BT.
That being said, bundled packages from these larger provider still tend to work out more expensive, when compared to using and independent VoIP provider and a separate ISP.
How to switch from BT Digital Voice
Switching providers can be straightforward if you plan carefully:
- Assess your needs – standalone landline, bundled service or mobile-only.
- Compare providers and pricing.
- Check broadband and device compatibility.
- Arrange number porting with your new provider.
- Time the switch to avoid early termination fees.
- Install and test any new hardware.
Conclusion
BT Digital Voice is the default path for many BT customers, but it is not the only option.
Independent digital landline and VoIP providers often offer:
- Greater flexibility
- More competitive pricing
- Stronger scam protection
- Broader device compatibility
With the PSTN switch-off scheduled for January 2027, now is the time to research alternatives to BT digital voice, rather than waiting for your copper line to be disconnected.
Explore your options, compare providers such as Phonely and independent VoIP services, and choose the solution that best fits your household’s needs.
