It’s time to ditch the outdated lines. ISDN is on its way out – by 2025 it’ll be gone for good. But the good news? You don’t need it anymore.
byTrunk SIP connects your calls through the internet. No bulky boxes, no legacy tech — just better, more reliable business calls.
What is byTrunk
It’s the next step in your phone system.
byTrunk moves your existing phone numbers and call setup onto a streamlined VoIP network — with all the flexibility and control you’d expect from a modern business comms solution.
Your team grows, your call volumes shift — byTrunk flexes with you. No awkward bolt-ons or waiting around to add lines.
Moving office? Expanding into new regions? Your phone numbers come with you, no faff, no forwarding.
We prioritise voice traffic — so your calls stay sharp, even when your broadband’s busy with everything else.
With real-time billing alerts, IP locking, and encrypted traffic, byTrunk keeps your system secure. Peace of mind, as standard.
If things go offline, your calls won’t. Built-in failover means your calls can instantly reroute to mobiles or other numbers, keeping you connected.
Whether you’re replacing ISDN or looking for a more dynamic, cost-effective phone system, byTrunk makes it simple. No downtime. No disruption. Just better calls.
