[Asterisk-Users] Echo cancel in MeetMe?

[Matt Lawson]

I'm trying to put multiple Linphones and Snom 200's into a Meetme room. 
 With two devices, echo is quite noticeable.  With 3 or more it 
degenerates into white noise.  Which part of the software is responsible 
for echo cancellation in a MeetMe room?  Is it a setting on the phones 
themselves, or within Asterisk?  And is this related to echo 
cancellation on the POTS lines?