Modernise Your Voice Infrastructure
Replace outdated ISDN lines with SIP technology that delivers flexibility and control. Gain scalable call capacity, number portability, and centralised management across all your sites — secured through a reliable internet connection. Our solutions are built to simplify voice operations while keeping your teams connected seamlessly.
Seamless Integration & Support
Volcron makes it easy to integrate SIP trunks into your existing phone systems, reducing costs while enhancing call quality and uptime. Keep your current setup, add the right number of channels, and benefit from resilience that grows with your business. With expert guidance and full support from day one, we ensure your transition to IP is smooth, future-proof, and tailored to your needs.

Build a Strong Voice Foundation
Volcron’s SIP trunking replaces outdated ISDN lines with scalable, cost-effective digital connectivity that grows with your business. We tailor every deployment to your goals and infrastructure, giving you a modern platform for reliable, future-ready voice communications.
Simplify & Improve Productivity
Unify inbound and outbound calling into one simple platform. With number portability, multi-site integration, and full PBX or cloud system compatibility, SIP trunks streamline call management and collaboration. Your teams stay connected and productive across every location.
Cut Costs & Boost Reliability
Lower monthly telecom costs while enhancing resilience. Our account managers oversee everything — from design and migration to long-term support. With failover routing, real-time analytics, and flexible channel scaling, your business gains performance, stability, and peace of mind.
Key SIP Trunk Features
