Business Guide
Nov 28, 2025

SOGEA Broadband: What UK Businesses Must Know Before the 2027 PSTN Switch-Off

Prepare your UK business for the 2027 PSTN switch-off with SOGEA broadband. Learn how Single Order Generic Ethernet Access delivers reliable connectivity, cuts costs, and future-proofs

SOGEA Broadband: What UK Businesses Must Know Before the 2027 PSTN Switch-Off

SOGEA (Single Order Generic Ethernet Access) is a data-only broadband service delivering 40–80Mbps speeds without requiring analogue phone line rental. It eliminates £15–20/month in line rental charges, supports VoIP telephony over your internet connection, and prepares UK businesses for the mandatory PSTN switch-off on 31 January 2027—making it the most cost-effective migration path for mid-sized enterprises.

What is SOGEA Broadband?

SOGEA consolidates data and voice into a single IP-based circuit—eliminating the legacy phone line entirely.

Unlike traditional FTTC broadband (which required separate data service + analogue line rental), SOGEA delivers:

  • Superfast speeds: 40–80Mbps depending on distance from cabinet
  • No line rental: Save £15–20/month immediately
  • VoIP-ready: Supports cloud-hosted phone systems out of the box
  • Single order: One provisioning process, unified billing, streamlined support

The physical infrastructure remains familiar: fibre runs from the exchange to your street cabinet, then copper completes the final connection. This hybrid approach means businesses upgrade connectivity without expensive full-fibre installation.

This means: Your business can reduce costs now, using existing infrastructure, while planning eventual migration to full-fibre business broadband when requirements evolve.

Why Does the PSTN Switch-Off Matter for Your Business?

The UK's century-old Public Switched Telephone Network retires permanently on 31 January 2027. BT recommends completing migrations by December 2025 to avoid peak-period congestion and engineer shortages.

What PSTN Currently Supports:

  • Voice services: Desk phones, call centres, reception systems
  • Critical infrastructure: Building alarms, lift emergency phones, door entry
  • Payment processing: Older EPOS terminals, card machines
  • Telemetry: Remote meter reading, security systems, HVAC controls

Approximately 15% of UK businesses still rely on at least one PSTN-dependent system. For enterprises with multiple locations, the migration timeline becomes tight when factoring in equipment audits, VoIP implementation, training, and testing.

The Financial Risk of Delay:

UK businesses experienced an average of 15.83 hours of broadband downtime in the year to January 2024, costing the economy an estimated £17.6 billion. Organisations waiting until 2026–2027 face compressed migration windows, limited engineer availability, and potential service disruptions.

How Does SOGEA Compare to Traditional Broadband?

Traditional FTTC + Line Rental:

  • £35–50/month combined cost
  • Includes analogue PSTN phone line
  • Two separate orders required
  • Ceases operation 31 January 2027

SOGEA:

  • £25–40/month (saves £10–20/month)
  • Data-only—requires VoIP for telephony
  • Single provisioning process
  • IP-based architecture—future-proof indefinitely

Speed remains identical: Both achieve 40–80Mbps depending on cabinet distance. There is no speed penalty for choosing SOGEA.

SLA availability improves: SOGEA includes robust 99.9% uptime guarantees with financial penalties—ensuring recourse if service drops below committed levels.

When Should Your Business Migrate to SOGEA?

Act by December 2025 to ensure controlled migration with adequate engineer availability.

Migrate Immediately If:

  • Current broadband contracts are expiring or out-of-contract
  • You're opening new sites or relocating premises
  • Line rental costs exceed £15–20 monthly across multiple locations
  • You're already planning VoIP implementation

Plan for 2025 Migration If:

  • Existing contracts run until Q2–Q4 2025
  • You need time to audit PSTN-dependent equipment
  • Budget approvals require 6–12 month planning cycles
  • Multi-site rollouts need phased implementation

Evaluate Full-Fibre Alternatives If:

  • Full-fibre (FTTP) is available at your postcode
  • Business-critical applications require guaranteed symmetrical bandwidth
  • You operate contact centres handling high call volumes
  • Five-year infrastructure planning justifies gigabit investment

74% of UK premises now have full-fibre access. However, with typical costs of £50–150/month versus £25–40 for SOGEA, budget realities often favour superfast options where 40–80Mbps adequately supports operations.

What Does the SOGEA Migration Process Look Like?

Typical timeline: 4–8 weeks from order to go-live.

Phase 1: Infrastructure Assessment (Week 1)

Audit all systems using PSTN lines: phones, alarms, door entry, EPOS, fax machines, monitoring equipment. Document which require IP alternatives versus decommissioning.

Phase 2: Service Design & Ordering (Weeks 2–3)

Select appropriate SOGEA speed tier. Design VoIP solution with adequate handsets. Configure call routing, voicemail, and CRM integration. Place SOGEA order—typically 10–15 working days for standard installations.

Phase 3: Pre-Installation Preparation (Week 4)

Configure and test VoIP handsets off-site. Update emergency systems with IP-compatible alternatives. Train staff on new phone systems.

Phase 4: Installation & Cutover (Week 5)

Openreach engineer installs SOGEA circuit. Provider configures router and activates VoIP services. Port existing phone numbers—typically completes within 2–4 hours.

Phase 5: Stabilisation & Optimisation (Weeks 6–8)

Monitor performance closely. Fine-tune Quality of Service settings. Collect user feedback. Decommission old PSTN lines after confirming reliable operation.

Businesses following structured migration processes experience 73% fewer post-implementation issues.

How Does AMVIA Support Your SOGEA Migration?

AMVIA eliminates the guesswork from PSTN migration with expert-led planning and guaranteed 99.9% uptime SLA.

Direct Expert Access—Never Voicemail

Call 0333 733 8050 and speak to a UK-based connectivity specialist within 90 seconds. No automated phone trees, no overseas call centres.

Comprehensive Migration Planning

Detailed site surveys, infrastructure audits, optimal SOGEA and VoIP configurations, and phased implementation plans that minimise operational disruption.

Transparent SLAs With Teeth

99.9% uptime guarantee isn't marketing—it's a financial commitment. Miss the SLA and you receive automatic credits, no questions asked.

Integrated VoIP and Connectivity

AMVIA delivers business broadband and VoIP systems as integrated solutions with unified support—eliminating finger-pointing between providers.

What Are Your Long-Term Connectivity Options Beyond SOGEA?

Multi-Site Connectivity with SD-WAN

Organisations with multiple locations benefit from SD-WAN solutions that intelligently route traffic across multiple circuits—combining SOGEA, leased lines, and cellular backup for resilience.

Full-Fibre for Bandwidth-Intensive Operations

Businesses handling large data transfers or real-time video production should evaluate fibre options delivering 100Mbps to 10Gbps symmetrical bandwidth. 86% of UK premises now have gigabit-capable coverage.

Integrated Unified Communications

Rather than treating voice separately, unified communications combine calling, video, messaging, and collaboration. Microsoft Teams integration enables seamless workflows within a single interface.

Cybersecurity Integration

As voice and data converge on IP networks, cybersecurity services become essential. VoIP systems face threats including toll fraud, eavesdropping, and denial-of-service attacks—risks that don't exist with traditional PSTN.

Frequently Asked Questions

What happens if I don't migrate before the 2027 deadline?

Services will simply stop working. After 31 January 2027, Openreach decommissions PSTN infrastructure—phones, alarms, and PSTN-dependent systems become inoperable. There is no extension or fallback.

Can I keep my existing phone numbers when migrating to SOGEA?

Yes. Number porting transfers existing landline numbers to your VoIP service, typically completing within 2–4 hours. AMVIA manages the porting process end-to-end.

Will SOGEA support my current internet speed requirements?

SOGEA delivers identical performance to traditional FTTC—typically 40–80Mbps. If you need higher speeds, explore leased lines or full-fibre options.

How does SOGEA pricing compare to my current setup?

Most businesses save £10–20 monthly per site by eliminating line rental. For a 10-location SME, annual savings of £1,200–2,400 fund other IT initiatives.

What backup options exist if SOGEA connectivity fails?

Options include 4G/5G backup routers, dual-circuit configurations with different carriers, and mobile divert routing calls to staff mobiles during outages.

Take Action Before the 2027 Deadline

The PSTN switch-off is unavoidable, but organisations acting strategically transform compliance into opportunity.

SOGEA delivers the performance UK businesses need at prices justifying immediate migration—eliminating line rental while preparing for the all-IP future.

Your Next Steps:

  1. Check SOGEA availability at your business locations
  2. Audit PSTN-dependent equipment to identify replacement requirements
  3. Contact AMVIA's expert team on 0333 733 8050 for no-obligation consultation
  4. Schedule migration before Q4 2025 to avoid the deadline rush

Ready to migrate? Get Your Free SOGEA Assessment from AMVIA's connectivity experts. Call 0333 733 8050—no voicemail, just direct access to engineers who understand your challenges.

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