I'm trying to convert from MeetMe to Confbridge and one part of that is handling the ending of a conference. So I'm taking the suggestion of originating a call to the conference and doing: same => n,Playback(conf-will-end-in&digits/${WTIME}&minutes) That crashes Asterisk (with no core dump!) in the default configuration. When I run it manually, I see the error message: Fatal (internal) error in kiss_fft.c, line 294: KissFFT: max radix supported is 17 If I "unload module codec_speex.so", everything works. If I playback files other than "conf-will-end", it also works. Two questions: (1) Why is that codec being used in the first place? (2) Why it is generating that error when it is? This the Asterisk 10.7.1 release.