⏰📞 A wake-up call is a timely and essential reminder, symbolized by the combination of an alarm clock (⏰) and a telephone (📞). It serves as an effective means to rouse someone from sleep, ensuring they are alerted and ready to start their day or fulfill their responsibilities. The combination of these symbols represents the act of receiving a prompt and timely communication that prompts one to awaken, signaling the beginning of a new day or a call to action.