How PTSN Assure Works
At the heart of PSTN Assure is Metallic Path Facility (MPF), a copper-line service that enables supported PSTN-dependent services to continue operating after the BT PSTN switch-off. By maintaining the underlying copper connection, organisations can continue using critical operational services without immediate migration to VoIP or large-scale infrastructure replacement.
This creates a transitional pathway that reduces operational risk, preserves existing investments and gives organisations greater flexibility when planning future migration projects.
Read PTSN Assure BrochureWhat Are The Features Of PSTN Assure?
MPF-Based Connectivity
PSTN Assure is powered by Metallic Path Facility (MPF) technology, enabling supported services to continue operating over existing copper infrastructure without immediate migration to VoIP-based alternatives.
Managed Continuity Service
PSTN Assure is delivered as a fully managed service by Britannic, providing project coordination, service management, supplier engagement and ongoing support through a single trusted partner.
Exchange-Level Transition
Service continuity is maintained through transition activities carried out within the telecommunications exchange environment, avoiding unnecessary disruption to onsite infrastructure, equipment and operational processes.
PSTN Service Discovery
Many organisations do not have complete visibility of what their PSTN lines support. PSTN Assure helps identify critical services, hidden dependencies and operational risks before they become switch-off issues.
Critical Service Support
Copy: Designed to support a wide range of PSTN-dependent services including alarms, lift emergency phones, payment terminals, emergency phones and building management systems.
Multi-Site Service Management
Ideal for organisations operating across multiple locations, properties and operational environments where PSTN dependencies can vary significantly from site to site.
What Are The Benefits Of Britannic’s PSTN Assure?
- Maintain operational continuity across critical services throughout the UK PSTN switch-off.
- Reduce exposure to operational, financial and reputational risk caused by legacy PSTN dependencies.
- Avoid costly infrastructure replacement projects and disruptive onsite engineering works.
- Protect business-critical services including alarms, lift emergency lines, payment terminals and building systems.
- Create the time needed to assess, prioritise and modernise services strategically rather than reactively.
- Reduce pressure on internal IT, estates and operational teams through a fully managed service approach.
- Simplify the management of complex estates with multiple sites, locations and service dependencies.
- Benefit from a single point of accountability for service coordination, supplier management and ongoing support.
- Take a phased and controlled approach to migration without impacting day-to-day operations.
- Preserve existing investments while developing a longer-term infrastructure modernisation strategy.
Why Choose Britannic For PSTN Assure?
Britannic has over 40 years of experience helping organisations manage and modernise business-critical communications. Through PSTN Assure, they help organisations keep essential services running while navigating the UK PSTN switch-off, without the disruption and complexity often associated with large-scale migration projects. As trusted system integrators, Britannic understands how legacy services connect into wider business operations and how to support organisations through change with confidence.
What Is The Pricing And Ordering Process For PSTN Assure?
Designed to provide a low-risk route through the BT PSTN switch-off, PSTN Assure helps organisations maintain critical operational services without the need for immediate infrastructure replacement.
Costs start from £17.50 per circuit per month, with a one-off migration fee of £51.50 per circuit and a minimum contract term of 12 months.
Ordering Process Steps |
Activity |
| 1 | Britannic reviews your PSTN estate and identifies suitable services for migration. |
| 2 | Circuit availability and service eligibility are validated before the migration is approved. |
| 3 | Britannic manages the ordering process and coordinates all migration activities on your behalf. |
| 4 | The migration is scheduled with a typical lead time of 10 working days from order acceptance. |
| 5 | Services are transitioned to PSTN Assure. Any downtime is planned and managed, typically lasting less than one hour. |
| 6 | Ongoing support and service management are provided by Britannic throughout the service lifecycle. |
For larger estates, Britannic can support phased migrations and help prioritise services based on operational requirements and business criticality.
