wen du anrufen willst
wen du anrufen willst ?
v eː n WORD_BOUNDARY d uː WORD_BOUNDARY  a n r uː f ə n WORD_BOUNDARY v ɪ l s t WORD_BOUNDARY
w e n WORD_BOUNDARY d u WORD_BOUNDARY a n r u f e n WORD_BOUNDARY w i l l s t WORD_BOUNDARY