Yeastar Technology S300 - Extension User Portal; Getting to Know the Desktop

Installation_Guide | 1 - Installation Guide | 4
LED Indication Status Description
Red: static The GSM/3G/4G Trunk is idle.
Red: blinking slowly No SIM card.
GSM/3G/4G
Red: blinking rapidly The GSM/3G/4G trunk is in use.
Orange: blinking The BRI line is disconnected.BRI
Orange: static The BRI line is connected or in use.
Red: static The PSTN line is idle.
Red: blinking slowly No PSTN line is connected to the
FXO port.
1-4
(Line status)
FXO
Red: blinking rapidly The PSTN line is busy.
Green: static The analog phone is idle.1-12
(FXS port)
FXS
Green: blinking The analog phone is busy.
Rear Panel