Telephonic Depth Interviews (TDIs) in market research provide a powerful and flexible way to gain deep insights into consumer attitudes and behaviors. Conducted over the phone, these one-on-one interviews allow researchers to explore topics in detail, offering a comfortable environment for participants. TDIs are ideal for reaching a geographically dispersed audience without needing physical presence, while still maintaining personal interaction. Skilled interviewers can adapt the conversation in real-time, uncovering detailed information that might not emerge through other methods.