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.

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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

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My spandsp.conf.xml file:

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<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>

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Thank you for your help.

Jean-Marc.