The PSTN Switch-Off is January 2027. Learn what the ISDN shutdown means for your business, affected equipment, and the critical steps you must take now to migrate to VoIP.

BT Landline Switchover 2027: A Definitive Guide for UK Businesses
Visualizing the BT landline switchover: ISDN retirement, stop-sell zones, and the 2027 migration deadline

BT Landline Switchover 2027: A Definitive Guide for UK Businesses

Table of Contents What Is the BT Landline Switchover? The UK’s communication infrastructure is undergoing its most significant transformation since the introduction of the digital exchange. By January 2027, the…

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SIP Trunks: ISDN30 Replacement for Multi-Site UK PBXs
Transitioning from legacy PSTN/ISDN30 circuits to modern SIP Trunking before the 2027 switch-off.

SIP Trunks: ISDN30 Replacement for Multi-Site UK PBXs

Table of Contents   Executive Summary: The 2027 Connectivity Mandate The telecommunications landscape of the United Kingdom is undergoing its most radical transformation since the digitalization of the exchange network…

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What is ISDN? BRI vs PRI Standards & the 2027 UK Retirement
The technical architecture of ISDN2e (BRI) and ISDN30 (PRI) and their role in UK business telecommunications before the 2027 PSTN switch-off.

What is ISDN? BRI vs PRI Standards & the 2027 UK Retirement

Table of Contents Understanding ISDN: From Digital Pioneer to the 2027 RetirementThe 31 January 2027 ISDN switch-off is the most significant technical migration in UK history. While ISDN provided reliable…

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PSTN Switch-Off UK: Technical History & Why It’s Failing
A Stride Communications engineer conducting an onsite technical audit to prepare a UK business for the 2027 PSTN switch-off

PSTN Switch-Off UK: Technical History & Why It’s Failing

Table of Contents 1. Introduction: The Century-Old Sentinel of Global CommunicationsFor more than a century, the Public Switched Telephone Network (PSTN) has functioned as the most resilient, extensively deployed, and…

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PSTN & ISDN Switch Off 2027 UK: Business Guide, Checklist, and VoIP Solutions
Preparing for the UK’s PSTN and ISDN switch-off in January 2027—Seamless business migration to VoIP and digital communications

PSTN & ISDN Switch Off 2027 UK: Business Guide, Checklist, and VoIP Solutions

Table of Contents 🚧 Introduction: The Unavoidable Digital Crossroads Imagine a day when your business phones fall silent, your card terminals decline every transaction, and your security systems lose their…

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