Sunsea AIoT SIMCom SIM7075G User Manual page 72

EDGE Enhanced data rates for GSM evolution
HSDPA High Speed Downlink Packet Access
HSUPA High Speed Uplink Packet Access
ZIF Zero intermediate frequency
WCDMA Wideband Code Division Multiple Access
VCTCXO Voltage control temperature-compensated crystal oscillator
SIM Universal subscriber identity module
UMTS Universal mobile telecommunications system
UART Universal asynchronous receiver transmitter
PSM Power saving mode
LD SIM last dialing phonebook (list of numbers most recently dialed)
MC Mobile Equipment list of unanswered MT calls (missed calls)
ON SIM (or ME) own numbers (MSISDNs) list
RC Mobile Equipment list of received calls
SM SIM phonebook
NC Not connect
F. Safety Caution
Table 49: Safety Caution
Marks Requirements
When in a hospital or other health care facility, observe the restrictions about the use
of mobiles. Switch the cellular terminal or mobile off, medical equipment may be
sensitive and not operate normally due to RF energy interference.
Switch off the cellular terminal or mobile before boarding an aircraft. Make sure it is
switched off. The operation of wireless appliances in an aircraft is forbidden to prevent
interference with communication systems. Forgetting to think much of these
instructions may impact the flight safety, or offend local legal action, or both.
Do not operate the cellular terminal or mobile in the presence of flammable gases or
fumes. Switch off the cellular terminal when you are near petrol stations, fuel depots,
chemical plants or where blasting operations are in progress. Operation of any
electrical equipment in potentially explosive atmospheres can constitute a safety
hazard.
Your cellular terminal or mobile receives and transmits radio frequency energy while
switched on. RF interference can occur if it is used close to TV sets, radios,
computers or other electric equipment.
Road safety comes first! Do not use a hand-held cellular terminal or mobile when
driving a vehicle, unless it is securely mounted in a holder for hands free operation.
Before making a call with a hand-held terminal or mobile, park the vehicle.
GSM cellular terminals or mobiles operate over radio frequency signals and cellular
networks and cannot be guaranteed to connect in all conditions, especially with a
mobile fee or an invalid SIM card. While you are in this condition and need emergent
help, please remember to use emergency calls. In order to make or receive calls, the
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