Doulos SIL is a Unicode-encoded serif font similar to Times New Roman. Besides having a comprehensive inventory of glyphs needed for almost any Roman- or Cyrillic-based writing system, it also contains the entire inventory of the International Phonetic Alphabet. It has built-in “smart-font” capabilities, so diacritics are properly placed.
Doulos is very similar to Times/Times New Roman, but only has a single face - regular. It is intended for use alongside other Times-like fonts where a range of styles (italic, bold) are not needed.