The document proposes using voice messages to communicate with parents about school meetings and activities, as not all parents can read text messages in English or Tamil, and some may be illiterate. It states that voice messages are an easy way to convey information to thousands of parents within minutes, and have been an effective tool for one school to communicate with over 150 parents. The document provides contact information for the headmaster of a primary school in Karur, Tamil Nadu, India.