Can I apply for the Thailand DTV visa from a neighboring country while on a student visa?

An Iranian citizen currently on a one-year student visa in Thailand is inquiring about the application process for a Thailand DTV visa next year, specifically whether it is necessary to return to Iran or if it can be applied for from neighboring countries. Responses indicate that the best option is to apply from the home country or a country of residence prior to applying. Importantly, applications cannot be made from within Thailand due to strict immigration controls, especially concerning student visas.