Modern phones also contain different types of antenna other than cellular antennas like wifi,
Bluetooth, GPS antenna
When in remote places we are not able to call or receivecalls this is because there is low
connectivity. The bars we see in our phone shows thestrength of connectivity, strength depends
on the distance between the phone and nearest cellphonetower and the interruption between
the two which causes weakness in connective. In orderto conserve battery, the phone changes
the strength of the signal transmitted if the connectivityis high signal has low strength hence
saving battery life but if the connectivity is lowphone it transmitted strong signals but it utilizes
lots of battery. So strong connectivity not only letsyou communicate and increases the quality of
call but also conserves the battery of mobile phones.