Dahdi echo cancellation

I just swapped from zaptel to Dahdi drivers, recompiled libpri and asterisk

I have a te412p card, w/ hardware echo cancellation.

Each time a call is made I get:

[Jan 13 09:39:22] WARNING[7794]: chan_dahdi.c:1481 dahdi_enable_ec: Unable to enable echo cancellation on channel 73 (No such device)

As I read the documents, I should not add additional config settings if I have hardware echo cancellation. How do I get rid of the warnings or fix if possible?