Hunting (telephony) is like playing a game of hide and seek with your phone calls. Imagine you are a person who wants to make a phone call to a company or office, but you do not know who to talk to. You dial the main phone number and the person who answers your call tells you that they cannot help you, but they know someone who can.
They then transfer your call to another person, but that person is not available either. So, they transfer your call again to another person, and this process keeps repeating until someone finally answers your call and can help you.
This process is called hunting in telephony. It is like a team of people hiding from you, and you have to seek out the right person to help you on your own. But don't worry, they are not really hiding, they are just busy with their work and cannot answer your call right away.
Hunting is often used in big companies or offices with many departments and employees, where it is difficult to know who to talk to for specific issues. It helps to ensure that no call goes unanswered and that customers can get the help they need.