WHOLESALE SIP

Colt Wholesale SIP is your one-stop shop to enter wholesale Voice markets: it's quick, cost efficient, simple, consistent, regulatory compliant & fully automated thanks to our APIs.

AWARD WINNING SOLUTION

We have been recognised for our Wholesale SIP product at the World Communications Awards in 2025. We won the silver award for ‘Best Wholesale Operator – Wholesale SIP’ as a testament to our API developments, customer service, and user experience.

TAKE THE CHALLENGE OUT OF EXPANDING

Remove the complexity in dealing with multiple providers and investing in local processes. Instead, focus on your business by working with a single partner.

Colt Wholesale SIP provides a standardised Pan-European Wholesale SIP Trunking solution with On Demand number management

KEEP CONTROL AND AUTOMATE YOUR BUSINESS

We provide you the tools you need to manage your business efficiently:

• The latest REST APIs and intuitive online interface (Numbers on Demand) to order and manage phone numbers 24/7

• API developer portal to find information on Colt's APIs and to test them in a dedicated sandbox

• Twice daily unrated CDRs to flexibly bill your end-customers

• Online VoIP Reporting to track your voice and data KPIs such as call statistics and network performance

SIMPLIFY YOUR GO TO MARKET

• One national interconnect for all your calls

• Complete set of APIs to manage your numbers

• Same experience across all our countries

• Single partner with over 30 years of in-country experience

• Full regulatory compliance

• Own carrier-grade IQ network, fully resilient and best in-class