> For the complete documentation index, see [llms.txt](https://docs.livecaller.io/livecaller/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.livecaller.io/livecaller/services/business-phone-pbx/devices.md).
# Devices
**Types of Devices:**
* **Webphone:** A phone that works in the browser. No installation is required.
* **Softphone:** A phone application for a computer or mobile device. Requires downloading an app.\
Please check compatibility with the relevant operating system (Windows, MacOS, Linux, iOS, Android) and use one of the listed devices:
* [Zoiper](https://www.zoiper.com/en/voip-softphone/download/current)
* [Linphone](https://www.linphone.org/en/download/)
* [MicroSIP](https://www.microsip.org/downloads)
* **Hardphone:** A physical IP phone device. A real device on your desk. In Georgia, popular and available physical phones include **Grandstream**, **Yealink**, or any other device compatible with the SIP protocol.
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You can manage or add different types of devices. The system fully supports **UDP** and **WSS** protocols.
**Note:**
* Create a **WSS** type device if using a WebPhone.
* Create a **UDP** type device if using a Softphone or Hardphone.
**Creating a Device:**
* **Name:** Choose a device name. Example: Giorgi - 201
* **Extension:** Choose the corresponding internal number, which must be between 100 and 9999. Each internal number is unique and cannot be created twice.
* **User:** The user who will use the created device.
**Advanced Settings:**
* **Transport:** Choose **UDP** or **WSS** depending on the device type.
**Device Status:**
* **Green color:** The device is registered and ready to receive incoming calls and/or make outgoing calls.
* **Red color:** The device is created but not connected. This may be due to incorrectly configured SIP parameters.
