> 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/apps-guides.md).

# Apps Guides

- [Summary of Changes](https://support.portsip.com/apps-guides/summary-of-changes.md)
- [PortSIP ONE Desktop App](https://support.portsip.com/apps-guides/portsip-one-desktop-app.md)
- [Sign in to PBX](https://support.portsip.com/apps-guides/portsip-one-desktop-app/sign-in-to-pbx.md)
- [Calls, Messages, and Voicemails](https://support.portsip.com/apps-guides/portsip-one-desktop-app/calls-messages-and-voicemails.md)
- [Customize Your Caller ID](https://support.portsip.com/apps-guides/portsip-one-desktop-app/customize-your-caller-id.md)
- [SMS and WhatsApp Messaging](https://support.portsip.com/apps-guides/portsip-one-desktop-app/sms-and-whatsapp-messaging.md)
- [CRM Integrations](https://support.portsip.com/apps-guides/portsip-one-desktop-app/crm-integrations.md)
- [AI Transcription](https://support.portsip.com/apps-guides/portsip-one-desktop-app/ai-transcription.md)
- [Click to Call](https://support.portsip.com/apps-guides/portsip-one-desktop-app/click-to-call.md)
- [Calling from Another Device](https://support.portsip.com/apps-guides/portsip-one-desktop-app/calling-from-another-device.md)
- [Screen Pop](https://support.portsip.com/apps-guides/portsip-one-desktop-app/screen-pop.md)
- [Change Your Call Queue Status](https://support.portsip.com/apps-guides/portsip-one-desktop-app/change-your-call-queue-status.md)
- [PortSIP ONE Mobile App](https://support.portsip.com/apps-guides/portsip-one-mobile-app.md)
- [Sign in to PBX](https://support.portsip.com/apps-guides/portsip-one-mobile-app/sign-in-to-pbx.md)
- [Calls, Messages, and Voicemails](https://support.portsip.com/apps-guides/portsip-one-mobile-app/calls-messages-and-voicemails.md)
- [Customize Your Caller ID](https://support.portsip.com/apps-guides/portsip-one-mobile-app/customize-your-caller-id.md)
- [SMS and WhatsApp Messaging](https://support.portsip.com/apps-guides/portsip-one-mobile-app/sms-and-whatsapp-messaging.md)
- [Change Your Call Queue Status](https://support.portsip.com/apps-guides/portsip-one-mobile-app/change-your-call-queue-status.md)
- [PortSIP ONE for Microsoft Teams](https://support.portsip.com/apps-guides/portsip-one-for-microsoft-teams.md)
- [PortSIP Softphone](https://support.portsip.com/apps-guides/portsip-softphone.md)