Colt SIP Trunking
Enable seamless voice communications with a flexible, cost-effective solution that scales with your business that integrates with your existing infrastructure. It's scalable, secure SIP Trunking for modern enterprises.
Modernise your voice infrastructure
Simplify and centralise voice infrastructure, reduce monthly costs up to 50%, and deliver new levels of flexibility and business continuity.
Colt SIP Trunking increases availability while optimising infrastructure and supplier management costs, both in-country and across the world.
up to 50%
saved on bills monthly
7 billion
minutes served per year
12
years of experience
Trusted by the worlds leading companies
benefits that empower progress
Related Insights
Why colt?
We deliver the extraordinary every day for our customers, people and partners. Here’s what sets us apart.
customers deployed across 29 countries
With global reach and deep in-country expertise, we’ve got you covered.
Buildings connected
With Colt fibre and millions more available via our Colt Network as a Service platform across Europe, Asia and the US.
Data Centres
Unparalleled access to key infrastructure hubs, enabling seamless integration with cloud providers, carrier hotels and enterprise facilities.
FAQs
SIP Trunking is a method of delivering voice communication over the internet using the Session Initiation Protocol (SIP). It replaces traditional phone lines and allows businesses to make and receive calls via their IP PBX. SIP Trunking enables a more flexible, scalable, and cost-efficient solution - with high-quality voice calls over IP, integrated with your PBX, and supporting global reach with a local presence.
By consolidating voice services and eliminating the need for physical lines, SIP Trunking reduces infrastructure and call costs, especially for international calls.
Yes - SIP Trunking uses SIP over TLS and SRTP to encrypt signalling and media, ensuring secure voice communication.
Yes - Colt supports number porting in most countries, allowing you to retain your existing numbers.
Colt SIP Trunking is compatible with major UC platforms including Microsoft Teams, Zoom, Cisco Webex and more.
Yes - Colt ensures compliance with local emergency calling regulations, including location-based routing.
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