both, depending on which parts of the circuit.
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Speak to your mobile phone retailer as you will need to get a Bluetooth headset that is compatible to your current cell phone.
You can compare LG mobile phone models on there website where all of their current models are available to look at and compare the features of the different models.
Some cell phones are controlled with a SIM card. You may want to see if your AT&T SIM card will work a T-MOBILE phone.
basic operation of mobile controlled lies with the functioning of DTMF and L293D driver ic. one mobile phone is used to send DTMF tones to Rx mobile phone and DTMF decoder ic is used to decode the dtmf tones and it sends information to to micro controller which produces response according to program and gives control to l293d driver ic.
when you speak into your phone the microphone changes the sound wave of your voice into a change in voltage.
Mobile Android phone management can be controlled by a mobile device manager which can be downloaded and installed.One of the best ones is the 3CX Mobile Device Manager which is an online service.
THe mbile charger takes a.c (alternating current) from power source and convers it to d.c(direct current) and feds it to mobile battery. The charger also steps down the voltage from the power line voltage 110v etc to very small voltages e.g3 v etc.
to swap means to change your current service over to a new prepaid virgin mobile phone...
current demand of mobile phone set can be an example of Full demand.
The speakers in a mobile phone are driven by passing AC current through a coil in thepresenceof a static magnet transducing the current into kinetic energy by the speaker coil diaphragm.