Log in to Colt Online Accessibility English Solutions Products Why Colt? Resources About us Contact us Voice Services Products & Services Home ❯ Voice Services Colt has a wide portfolio of business phone lines & systems with a broad international coverage now extended to 29 countries in Europe, Asia, Australia, and North America. SIP/ISDN services Colt Voice portfolio delivers reliable and affordable carrier and enterprise business grade services to enterprises. | SIP Trunking | ISDN Services Unified communications Colt provides flexible and scalable unified communications solutions as a service, fully managed end-to-end. | Intelligent Communications IN Services Colt Intelligent Network (IN) Services is a managed portfolio of inbound voice services that provide our customer’s callers with an improved user experience, whilst maximising the performance of the customer’s call centre. | Business phone numbers | Contact centre solutions | Voice On Demand Contact centre as a service Easy to deploy omni-channel solutions to build meaningful customer relationships, with a remote workforce. | Contact centre as a service (CCaaS) Service provider solutions A portfolio of comprehensive Wholesale VoIP propositions addressing the needs of Carriers, Resellers and Service Providers. | White label solutions | Number hosting | IN over Carrier VoIP How Colt solves the challenges of providing international voice services: Your one-stop shop It's difficult to work with multiple providers across your countries, so Colt is your one-stop-shop for your global voice needs Full regulatory compliance We offer full regulatory compliance across all our geographic regions, saving you time and complexity Quick time to market React to changing demands with ease - add new telephone numbers to your service in just 3 days Extensive coverage We can support your expansion with developed markets across 4 continents & 29 countries. See the infographic As a phone system provider, we serve enterprise, reseller and wholesale businesses with a tailored service wrap and is ideally positioned to meet the growing global challenges of our customers. We deliver flexible - with on-demand services - and resilient all-catering capabilities for our enterprise services, while at the same time we offer completely automated solutions for our carriers and resellers. Colt voice services portfolio includes outbound voice services to connect to enterprises’ PBXs – either traditional ISDN services or SIP Trunking – as well as inbound voice services (e.g. 0800 Freephone) that include value-added customer contact centre services. As enterprises are increasingly looking at moving their communication infrastructure to the cloud, we provide unified communications as a service solution as an alternative to customer-owned premise-based PBX. Contact us about: Voice Services Company Size 0-500 501-2000 2001-5000 5001-10,000 10,000+ Are you a Colt customer?* Yes No By submitting this form you have read and agree to our Data privacy statement. Contact Us Support Complaints Careers Legal Covid-19 Terms & Conditions Code of Business Conduct Data Privacy Information © 2021 Colt Technology Services Group Limited Colt Online Colt Interactive This website uses cookies to make our site work, for marketing purposes and to improve your online experience. We won‘t set optional cookies unless you enable them. You can change your cookie settings at any time. Further information can be found in our Privacy Policy and Terms of Use. See more information here Accept all cookies Cookies settings