> For the complete documentation index, see [llms.txt](https://docs.colt.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.colt.net/datasheet-hub/voice/wholesale-sip.md).

# 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

<figure><img src="/files/UgoXoKY3B2Tg8AFB1auo" alt="" width="258"><figcaption></figcaption></figure>

## 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