I&#39;m still chipping away at modifying a Startech CM108 USB fob - so far I have successfully got PTT and audio out working, but I&#39;m struggling with audio in and COS.<br><br>I&#39;ve been following <a href="http://www.qsl.net/k0kn/cm108_mod.html">http://www.qsl.net/k0kn/cm108_mod.html</a><br>
<br>Can anyone advise if there&#39;s a way to determine from the Asterisk side if COS is active or not?<br><br>I&#39;ve even tried manually taking the CM108 pin 48 to 0v and +5v with the iax.conf below, but I can&#39;t seem to make anything &#39;happen&#39;.<br>
<br>My theory was, as soon as I have COS triggering Asterisk correctly, then I can look at getting the audio in working properly.<br><br>TIA<br clear="all"><br>-- <br>Jim Whiteside.<br>M0HPJ<br><br><div style="margin-left:40px">
[usb28233]<br>hdwtype=0    <br>rxboost=1<br>txboost=0<br>rxctcssrelax=1<br>txctcssdefault=94.8<br>rxctcssfreqs=94.8    <br>txctcssfreqs=94.8<br>;rxctcssoverride=0<br>carrierfrom=usbinvert<br>ctcssfrom=no<br>rxdemod=speaker<br>
txprelim=no<br>txlimonly=no<br>txtoctype=notone<br>txmixa=composite<br>txmixb=no<br>invertptt=0<br>duplex=0<br>rxondelay=0<br>rxnoisefiltype=0<br>eeprom=0<br></div>