Why does an embassy conduct a phone interview for a DTV visa weeks after applying?

An embassy may schedule an over-the-phone interview for a DTV visa weeks after application due to certain doubts or questions regarding the application. This can be standard procedure as they review the details of the application and may need clarification. Although this can be perceived as inconvenient, it allows the embassy to address any issues without requiring an in-person visit. Past experiences shared by individuals indicate that such interviews can sometimes be used for training new staff or to ensure the applicant's claims align with their current situation.