Hello everyone,

I'm trying to fine tune call progress tone using tone_detect_start. I set spandsp.conf.xml:
<descriptions log-level="2">

Log shows these lines: Tone segment f1=-1, f2=-1, duration=336ms

How can I tell which frequency represents -1, 4 or 5?
What is the frequency assignment of silence?

Let's use North America as an example.

/Nandy
     <!-- North America -->
     <descriptor name="1">
       <tone name="CED_TONE" description="ANS / ANSam">
         <element freq1="2100" freq2="0" min="700" max="0"/>
       </tone>
	
       <tone name="SIT" description="Special Information Tone">
         <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="RING_TONE" description="North America ring">
         <element freq1="440" freq2="480" min="1200" max="0"/>
       </tone>		
	
       <tone name="REORDER_TONE" description="North America reorder">
         <element freq1="480" freq2="620" min="224" max="316"/>
         <element freq1="0" freq2="0" min="168" max="352"/>
         <element freq1="480" freq2="620" min="224" max="316"/>
       </tone>

       <tone name="BUSY_TONE" description="North America busy">
         <element freq1="480" freq2="620" min="464" max="536"/>
         <element freq1="0" freq2="0" min="464" max="572"/>
         <element freq1="480" freq2="620" min="464" max="536"/>
       </tone>
     </descriptor>