Hello everyone, Is it possible to have some help in setting up mod_spandsp for call progress tone detection? I have not been successful thus far. I keep getting an "error reading frame" message like this one below. ============================================================================ =================== 2012-04-09 16:03:22.550303 [DEBUG] mod_spandsp_dsp.c:379 (sofia/internal/sip:1000@184.162.247.104:32986) Starting tone detection for '1' 2012-04-09 16:03:22.550303 [INFO] mod_spandsp_dsp.c:411 (sofia/internal/sip:1000@184.162.247.104:32986) initializing tone detector 2012-04-09 16:03:22.550303 [DEBUG] switch_core_media_bug.c:462 Attaching BUG to sofia/internal/sip:1000@184.162.247.104:32986 2012-04-09 16:03:22.590301 [DEBUG] switch_core_io.c:340 Setting BUG Codec PCMU:0 2012-04-09 16:03:22.590301 [INFO] mod_spandsp_dsp.c:422 (sofia/internal/sip:1000@184.162.247.104:32986) error reading frame 2012-04-09 16:03:22.590301 [INFO] mod_spandsp_dsp.c:447 (sofia/internal/sip:1000@184.162.247.104:32986) destroying tone detector ============================================================================ =================== My spandsp.conf.xml file: ============================================================================ =================== <configuration name="spandsp.conf" description="Tone detector descriptors"> <descriptors> <!-- These tones are defined in Annex to ITU Operational Bulletin No. 781 - 1.II.2003 --> <!-- Various Tones Used in National Networks (According to ITU-T Recommendation E.180)(03/1998) --> <!-- North America --> <descriptor name="1"> <tone name="CED_TONE"> <element freq1="2100" freq2="0" min="500" max="0"/> </tone> <tone name="SIT"> <element freq1="950" freq2="0" min="256" max="400"/> <element freq1="1400" freq2="0" min="256" max="400"/> <element freq1="1800" freq2="0" min="256" max="400"/> </tone> <tone name="REORDER_TONE"> <element freq1="480" freq2="620" min="224" max="272"/> <element freq1="0" freq2="0" min="224" max="272"/> </tone> <tone name="BUSY_TONE"> <element freq1="480" freq2="620" min="464" max="516"/> <element freq1="0" freq2="0" min="464" max="516"/> </tone> </descriptor> </descriptors> </configuration> ============================================================================ =================== Thank you for your help. Jean-Marc.