Hi In spandsp.conf.xml, the following tones are given for North America. And similarly, others are given for UK and Germany. What will be the Fax tones for India ? 20 <descriptor name="1"> 21 <tone name="CED_TONE"> 22 <element freq1="2100" freq2="0" min="500" max="0"/> 23 </tone> 24 <tone name="SIT"> 25 <element freq1="950" freq2="0" min="256" max="400"/> 26 <element freq1="1400" freq2="0" min="256" max="400"/> 27 <element freq1="1800" freq2="0" min="256" max="400"/> 28 </tone> 29 <tone name="REORDER_TONE"> 30 <element freq1="480" freq2="620" min="224" max="272"/> 31 <element freq1="0" freq2="0" min="224" max="272"/> 32 </tone> 33 <tone name="BUSY_TONE"> 34 <element freq1="480" freq2="620" min="464" max="516"/> 35 <element freq1="0" freq2="0" min="464" max="516"/> 36 </tone> 37 </descriptor> regards, Anita