Hi there,<br><br>We received the following comment from a customer who is not able to use DTMF tones generated from FreeSWITCH.<br><br>The call flow is<br><br>PSTN ------&gt; FS -----&gt; PSTN    i.e. simple call forwarding. The comment reads:<br>
<br><span style="color: black;">&quot;we had our phone system tech out yesterday. He tested the line and noted that 
when the forwarded (FreeSWITCH) line is forwarded the DTMF tones were weak. When our main line 
was called directly the DTMF tones were clear and strong. Perhaps by boosting 
the power during the forwarding process this can be rectified. I hope that 
helps.</span><br><br>I am using start_dtmf_generate<br><br>Is there a way of boosting the volume of the generated tones? Or just a better way to handle this situation?<br><br>Thanks so much for any advice<br><br><br>Pj<br>