# Page Not Found

The URL `hc/en-gb/articles/212085225-Which-service-providers-can-sipgate-port-numbers-from` does not exist.

You might be looking for one of these pages:
- [What are the security Settings for sipgate IP & Port Ranges?](https://teamhelp.sipgate.co.uk/integrations-and-connections/using-sipgate-trunking/what-are-the-security-settings-for-sipgate-ip-port-ranges.md)
- [How can I cancel a phone number?](https://teamhelp.sipgate.co.uk/account-management/managing-phone-numbers/how-can-i-cancel-a-phone-number.md)
- [How to assign phone numbers](https://teamhelp.sipgate.co.uk/account-management/managing-phone-numbers/how-to-assign-phone-numbers.md)
- [How do I set up a central phone number?](https://teamhelp.sipgate.co.uk/use-sipgate/telephony/how-do-i-set-up-a-central-phone-number.md)
- [Which functions are available during a call?](https://teamhelp.sipgate.co.uk/use-sipgate/telephony/which-functions-are-available-during-a-call.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://teamhelp.sipgate.co.uk/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://teamhelp.sipgate.co.uk/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/integrations-and-connections/using-sipgate-trunking/what-are-the-security-settings-for-sipgate-ip-port-ranges.md`)
- Use `Accept: text/markdown` header for content negotiation