External SIM State

When attempting to connect to a network the modem will cycle through a series of processes to attempt to establish a connection. The state of this connection is shown here. 

State Notes
COULD NOT CONNECT No SIM card detected or communication failed
SLOT-STARTING SIM card slot is restarting
VERIFY(1-3) Verify a SIM card is installed
SLOT-SWITCH Switch the modem to use the external SIM slot
CHECK STATE Checking the state of the modem
UNLOCK-SIM Check if a PIN is required and unlock the SIM card
SIM-UNLOCKED SIM card has been unlocked
ENABLE Enabling the network 
ENABLE-WAIT Waiting for a network signal
WAIT-REGISTERED Attempting to register the SIM card on the network
APPLY-APN Applying the APN settings 
CONNECT Attempting to connect to the internet
CONNECTED SIM card is connected to the internet
SLOT-DISCON SIM slot is being disconnected from the modem
SLOT-DISABLE SIM slot is being disabled
SLOT-STOPPING SIM slot is being shut down