Ejoin ACOM664 - Page 60

SMS Gateway User Manual
Shenzhen Ejoin Technology Co.,Ltd.
58
Figure 3.8.1-1 Port LED
Items
Description
SIM card is detected, but it is not active.
SIM card inserted, but the module not read the card.
SIM card inserted, and module already read the card.
SIM card is registered.
SIM card is calling.
SIM card inter-calling
SIM card is preparing inter-calling
SIM card is using data
Low balance(lower than the invalid balance when enable billing system)