To receive a phone call; a call comes in (the counterpart of 'to make a phone call' 電話を掛ける).
夜遅くに母から電話が掛かってきた。
A call came from my mother late at night.
会議中に電話が掛かると困るので、携帯をマナーモードにした。
Since it would be troublesome if a call came during the meeting, I set my phone to silent.
最近、間違い電話がよく掛かるようになった。
Lately, wrong-number calls have been coming in frequently.