> For the complete documentation index, see [llms.txt](https://support.portsip.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.portsip.com/pbx_v12.md).

# PBX v12.x (EOL)

- [PortSIP PBX v12.x is EOL](https://support.portsip.com/pbx_v12/portsip-pbx-high-availability.md)
- [High Availability](https://support.portsip.com/pbx_v12/portsip-uc-high-availability.md)
- [PortSIP PBX High Availability](https://support.portsip.com/pbx_v12/portsip-uc-high-availability/portsip-pbx-high-availability.md)
- [UCaaS High Availability](https://support.portsip.com/pbx_v12/portsip-uc-high-availability/ucaas-high-availability.md)
- [Deploy the PortSIP PBX HA on AWS](https://support.portsip.com/pbx_v12/portsip-uc-high-availability/deploy-the-portsip-pbx-ha-on-aws.md)
- [Deploy PortSIP PBX HA for CentOS](https://support.portsip.com/pbx_v12/portsip-uc-high-availability/deploy-portsip-pbx-ha-for-centos.md)
- [Deploy PortSIP PBX HA for Ubuntu](https://support.portsip.com/pbx_v12/portsip-uc-high-availability/deploy-portsip-pbx-ha-for-ubuntu.md)
- [Migrate the HA data](https://support.portsip.com/pbx_v12/portsip-uc-high-availability/migrate-the-ha-data.md)
- [Push Notifications](https://support.portsip.com/pbx_v12/push-notifications.md)
- [How do push notifications work with PortSIP PBX?](https://support.portsip.com/pbx_v12/push-notifications/how-do-push-notifications-work-with-portsip-pbx.md)
- [Implement the PUSH notifications in Xamarin iOS APP with PortSIP PBX 12.x](https://support.portsip.com/pbx_v12/push-notifications/implement-the-push-notifications-in-xamarin-ios-app-with-portsip-pbx-12.x.md)
- [Implement the PUSH notifications in native iOS APP with PortSIP PBX 12.x](https://support.portsip.com/pbx_v12/push-notifications/implement-the-push-notifications-in-native-ios-app-with-portsip-pbx-12.x.md)
- [Implement PUSH notifications in Android APP with PortSIP PBX 12.x](https://support.portsip.com/pbx_v12/push-notifications/implement-push-notifications-in-android-app-with-portsip-pbx-12.x.md)
- [Implement PUSH notifications in Xamarin Android APP with PortSIP PBX 12.x](https://support.portsip.com/pbx_v12/push-notifications/implement-push-notifications-in-xamarin-android-app-with-portsip-pbx-12.x.md)
- [Tutorials](https://support.portsip.com/pbx_v12/tutorials.md)
- [REST API Examples](https://support.portsip.com/pbx_v12/tutorials/call-control-api.md)
- [Trace server - A Better Way to Debug PortSIP UC](https://support.portsip.com/pbx_v12/tutorials/debug-sip-message.md)
- [Setup SSL Certificates for HTTPS/WebRTC](https://support.portsip.com/pbx_v12/tutorials/setup-ssl-certificates.md)
- [Going Real-Time with PortSIP PBX Pub/Sub](https://support.portsip.com/pbx_v12/tutorials/going-real-time-with-portsip-pbx-pub-sub.md)
- [Upgrade PortSIP PBX for offline](https://support.portsip.com/pbx_v12/tutorials/upgrade-portsip-pbx-for-offline.md)
- [PortSIP UC Architecture](https://support.portsip.com/pbx_v12/tutorials/portsip-pbx-architecture.md)
- [PortSIP PBX Features](https://support.portsip.com/pbx_v12/tutorials/portsip-pbx-features.md)
- [PortSIP Security Feature](https://support.portsip.com/pbx_v12/tutorials/portsip-security-feature.md)
- [Hardware Specifications](https://support.portsip.com/pbx_v12/tutorials/hardware-specifications-for-portsip.md)
- [Setup PortSIP PBX for Linux](https://support.portsip.com/pbx_v12/tutorials/setup-portsip-pbx-linux.md)
- [Upgrade PortSIP PBX](https://support.portsip.com/pbx_v12/tutorials/upgrade-portsip-pbx.md)
- [Upgrade PortSIP PBX v12.x to the v12.8.7](https://support.portsip.com/pbx_v12/tutorials/upgrade-portsip-pbx-v12.x-to-the-v12.8.7.md)
- [Add Extended Media Server](https://support.portsip.com/pbx_v12/tutorials/add-extended-media-server.md)
- [Store the recording files to AWS S3](https://support.portsip.com/pbx_v12/tutorials/store-the-recording-files-to-aws-s3.md)
- [Configure Notifications for Kubernetes](https://support.portsip.com/pbx_v12/tutorials/configure-notifications-for-kubernetes.md)
- [Rebranding PortSIP PBX](https://support.portsip.com/pbx_v12/tutorials/rebranding-portsip-pbx.md)