TE820 is an 8-span PCI-express digital interface card. VPMOCT256 is a hardware echo canceler that is able to provide echo cancelation on all 8-spans. From: Matthew Fredrickson <creslin@digium.com> Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com> Signed-off-by: Shaun Ruffell <sruffell@digium.com> git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10290 a0bf4364-ded3-4de4-8d8a-66a801d63aff