# Page Not Found

The URL `services/voice-over-ip-voip/3cx-guides/changes-to-default-3cx-headers` does not exist.

You might be looking for one of these pages:
- [Changes to default 3CX Headers](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides/changes-to-default-3cx-headers.md)
- [VoIP Fault Guide](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/troubleshooting/voip-fault-guide.md)
- [3CX](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides.md)
- [Brand Specific Guides](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/technical-references/brand-specific-guides.md)
- [Technical References](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/technical-references.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://kb.hostednetwork.com.au/support/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://kb.hostednetwork.com.au/support/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/support/services/voice-over-ip-voip/general/3cx-guides/changes-to-default-3cx-headers.md`)
- Use `Accept: text/markdown` header for content negotiation