This document should render the ssml using the base attribute specified to load the lexicon. You should hear the famous song lyrics read once incorrectly (99 bottles of coffee), then read correctly (99 bottles of beer). Manual='ABS_URI' Manual='PLAT_DEP' Ninety-nine bottles of coffee on the wall. Ninety-nine bottles of coffee. Ninety-nine bottles of coffee on the wall. Ninety-nine bottles of coffee.