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SIP Trunks replace traditional phone lines with secure, resilient connections over broadband internet, seamlessly linking your business PBX to the PSTN while protecting your existing telephony investment.
SIP Trunks, designed to replace traditional phone lines, utilize broadband internet connections to seamlessly connect your business phone system (PBX) to the traditional phone network (PSTN), eliminating the need to replace your existing hardware.
SIP Trunks, or Session Initiation Protocol Trunks, are virtual connections that enable the transmission of voice and other unified communications services over the internet. They replace traditional telephone lines by using the internet to carry voice and data traffic, offering cost savings, scalability, and flexibility for businesses.
SIP trunking delivers better flexibility and cost efficiencies of up to 50% by simply connecting to the phone network via the internet. It may be more budget friendly, but it’s also incredibly reliable – ensuring your calls are never lost through line faults or power cuts. Traditional phone lines are being phased out in 2025, so SIP trunks are the ideal future proof option to protect your business.
Discover why SIP trunking is the natural evolution of business voice.
Significantly reduce line rental and call costs, including long‑distance and international traffic.
Enjoy a single provider for connectivity, SIP trunks and support, simplifying management and billing.
Port your existing numbers or select new geographic and non‑geographic ranges as your business grows.
Quickly add or remove channels as demand changes, without the delays of installing new lines.
Support voice, video and unified communications services over a single IP connection.
Build resilient call routing with failover, overflow and remote working options for your teams.
Bring multiple sites, offices and numbers together onto one SIP platform and portal.
Reach customers and teams worldwide with international numbering and global routing options.
Integrate with PBXs, contact centre platforms and collaboration tools with quality of service controls.
Be ready for the PSTN switch‑off with all‑IP voice services designed for modern networks.
SIP trunking gives organisations a more agile, resilient and cost‑effective way to handle their voice traffic. With the ability to scale channels on demand, route calls intelligently and support hybrid or fully remote workforces, it’s an ideal choice for growing businesses that want to modernise without replacing existing PBX investments.
We provide SIP Trunks with competitive pricing, allowing businesses to reduce telecommunication expenses without sacrificing quality or reliability.
Security is a priority. Our SIP services include robust protection, encryption options and policy controls to safeguard data and support compliance with industry regulations.
Unlock advanced features such as call forwarding, voicemail‑to‑email, auto‑attendants and virtual numbers to power modern business communications.
Manage SIP channels through an easy‑to‑use centralised portal, making it simple to add capacity, view usage and make routing changes.
Our UK‑based teams provide dedicated support for setup, maintenance and troubleshooting, ensuring you always have expert help when you need it.
As a 3CX preferred supplier with native integration and setup, we offer end‑to‑end solutions that pair 3CX with resilient SIP trunks, connectivity and hardware.
We offer a wide range of bespoke SIP products to meet your specific requirements, from Microsoft Teams integration to high‑volume call environments.
Use Microsoft Teams as your business phone system. Direct Routing connects Teams to the traditional phone network (PSTN), turning your internal collaboration tool into a complete unified communications platform with external calling.
As a market‑leading 3CX solutions provider, we deliver onboarding, setup, support and maintenance. Our end‑to‑end packages include 3CX licensing, SIP trunks, connectivity and hardware, deployed in a highly resilient cloud to guarantee service levels.
Our high‑volume SIP Trunks are designed for customers who need high call‑per‑second rates and large channel capacity. Integrate directly with your existing PBX and take advantage of cloud‑based solutions without replacing your current equipment.
