For the complete documentation index, see llms.txt. This page is also available as Markdown.

COLT ONLINE, NUMBERS ON DEMAND AND B2B APIS

User guides, release notes and CDRs

We would like to introduce Wholesale customers to our B2B interface: Colt Online, which can be used for unrated CDR delivery for voice services (e.g. SIP Trunking, Wholesale SIP, Voice Line & IN services).

Here you have easy access to the Unrated CDR guide to facilitate the setup and usage of our tool: Colt Online.

Wholesale SIP customers should now use our Numbers on Demand web interface or our B2B APIs in order to reserve & activate numbers and port-in numbers to Colt. Online help, user guides & video guides are available below.

Login to Colt Online

1. WHOLESALE SIP (NUMBER HOSTING) RELEASE NOTES

In reverse chronological order of release.

2026
2025
2024
2023
2022
2021
2020

2. USER GUIDES FOR UNRATED CDRS

Twice daily unrated CDRs are available for the following products:

  • IN services (Freephone, Shared Cost, IN Geo)

  • Voice Line

  • Voice Line (v) - unrated CDRs can be found under "IP Voice Line"

  • SIP Trunking

  • Carrier VoIP

  • Geographic Number Hosting

ADDITIONAL DOWNLOADS

3. USER GUIDES FOR WHOLESALE SIP

COLT NUMBER COVERAGE FILE
WHOLESALE SIP NETWORK GUIDE
WHOLESALE SIP SERVICE MATRIX
NUMBER HOSTING API GUIDES
USER ACCOUNT MANAGEMENT GUIDE

4. USER GUIDES FOR NUMBERS ON DEMAND

WHAT IS NUMBERS ON DEMAND?
NUMBERS ON DEMAND GUIDE
HOW TO RESERVE A NUMBER
HOW TO PORT IN A NUMBER
HOW TO UPDATE THE ADDRESS OF A NUMBER
HOW TO ACTIVATE A NUMBER

Release Notes supplementary files

18th July 2026 Release Notes - YAML & XSD files
21st March 2026 Release Notes - YAML & XSD files

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