/m n ŋ ŋ͡m/ <m n ng mg>
/p t d k k͡p/ <p t d k q>
/s x/ <s h>
/l j w/ <l y w>

/a ɛ e i ɔ o u/ <a ɛ e i ɔ o u>

/d/ may have been actually pronounced /ɾ/.

There is vowel harmony: /ɛ ɔ/ being low vs. /e i o u/ being high. /a/ was neutral but if it was the only vowel in a word, it triggered low harmony.

Syllable structure was CV(N), where N is any nasal. Nasals assimilate to following nasals or obstruents.