Did you try T.38 ?<br>These PAP2 boxes should be able to benefit from Asterisk T.38 pass through capabilities.<br>You would then have to install a T.38 termination device, such as Linksys 3102 :<br><br>PSTN -------- Linksys 3102 ----------- LAN --------- PAP2 ----------- Fax machine
<br><br>Cheers<br><br>