# Page Not Found

The URL `pbx-cluster/topology` does not exist.

You might be looking for one of these pages:
- [Topology](https://support.portsip.com/v16.x-maintenance-mode/pbx-cluster/topology.md)
- [Topology](https://support.portsip.com/portsip-communications-solution/pbx-cluster-v22/topology.md)
- [Tutorials](https://support.portsip.com/pbx_v12/tutorials.md)
- [PortSIP Softphone](https://support.portsip.com/apps-guides/portsip-softphone.md)
- [REST API Examples](https://support.portsip.com/pbx_v12/tutorials/call-control-api.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/v16.x-maintenance-mode/pbx-cluster/topology.md`)
- Use `Accept: text/markdown` header for content negotiation