[Telephony] Re: PSTN echo with clone x100/x101 cards

[TC]

Hi

Does any one here follow the asterisk user mail list and the on going saga
with
echo issues going to the PSTN from a digital interfaces

on this thread
http://lists.digium.com/pipermail/asterisk-users/2004-April/044015.html

Does anyone have the engineering back ground/gear on this list
to actually measure imbalanced at the interface to the attached pstn line

http://lists.digium.com/pipermail/asterisk-users/2004-April/044029.html