Does amobile phone always sendand receive signals? or only at the talking and texting time?

Answer 1

A mobile phone is always sending and receiving a message to and from the network telling it that the phone is there and letting the network choose the cell antenna to use.

Yes, as long as your phone is on, they can find you. It's not easy, but they can find you.

Answer 2

yes, it always keeps on recieving signals, when a mobile is put on a idle mode i.e. when u r not talking or texting, it keeps on searching for the nearest and the best network signals, sometimes u can notice that even if u r not talking or texting the signals fluctuate, so at that time also ur mobile is at work.