NFC Tag: Tap an NFC-capable mobile phone's back against the Yeastar logo to quickly configure network settings.

System Indicator: This indicator shows the system status. When blinking, it indicates that the system is working properly. If it remains static or off, it suggests that there is a problem with the system.

Power Indicator: This indicator displays the power status of the device.

WAN Port: This port is used for connecting the device to a Wide Area Network (WAN), enabling communication with external networks.

LAN Port: This port is used for connecting the device to a Local Area Network (LAN), facilitating communication within the local network.

USB Slot: Insert a USB flash drive into this slot to store voicemails, logs, or recording files.

1-8 LED (RJ11 port status): These LEDs indicate the status of the ports.

• FXS (Analog phone or fax machine) Port:
  • Green (static): The port is idle.
  • Green (blinking): The port is in use.
• GSM/3G/4G LTE Trunk:
  • Red (static): The trunk is idle.
  • Red (blinking slowly): No SIM card.
  • Red (blinking rapidly): The trunk is in use.
• BRI Line:
  • Orange (static): The line is connected or in use.
  • Orange (blinking): The line is disconnected.
• FXO (PSTN Line) Port:
  • Red (static): The line is idle.
  • Red (blinking slowly): No line is connected.
  • Red (blinking rapidly): The line is in use.

1-8 port (RJ11 ports):

• FXS Port (green light): Used for connecting analog phones or fax machines.
• BRI Port (orange light): Used for connecting ISDN BRI lines.
• FXO Port (red light): Used for connecting PSTN lines or FXS ports of traditional PBX.

Reset Button: Press and hold this button for 10 seconds to restore the device to its factory default settings.