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By 2025, traditional ISDN and PSTN phone lines will be permanently switched off in the UK. This change will impact every business still relying on legacy systems, but with ITRM, you can make the transition smoothly and confidently.
With over 25 years of experience in business communication, we help organisations across London and the South East migrate to modern telephony solutions that are reliable, secure, and packed with features to support the way you work today.
We don’t just replace your old system, we design and implement a solution that improves call quality, reduces costs, and ensures your business is ready for the future of communication.
"I just wanted to say a huge thank you for delivering the Horizon project for us. It was a tight deadline but we made it thanks to your professionalism, hard work and dedication."
Karen Newman, HR and Systems Director
Our migration service covers every stage of the process, from planning and system selection to deployment, training, and ongoing support.
As part of our reviews, we provide:
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We make the transition from ISDN/PSTN to modern telephony smooth and stress-free. Our experts handle every stage, from planning to deployment, scheduling upgrades around your operations to ensure zero downtime and uninterrupted communication.
Switching to VoIP or cloud-hosted telephony brings enhanced features, improved reliability, and cost savings. Enjoy advanced call management, conferencing, mobile integration, and scalability, all supported by a robust infrastructure designed for long-term performance.
We ensure your migration meets all telecom regulations and data protection requirements. With secure systems, encrypted communications, and ongoing support, you can be confident your business remains compliant and protected well into the future.
Our migration packages provide everything you need to move away from legacy systems and embrace modern, efficient communication, without the stress.
Switching providers or upgrading your systems? Our onboarding process is smooth, transparent, and tailored to your needs:
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As an award-winning managed service provider, ITRM supports organisations across London, Kent, Bristol, and surrounding counties, delivering trusted IT solutions across various industries.
