Dahdi for pri

Q1, How can you compile asterisk with dahdi for D110P/D210P/D410P

please refer these links:
http://bbs.openvox.cn/viewthread.php?tid=576&extra=page%3D1
http://www.voip-info.org/wiki/view/DAHDI
http://www.russellbryant.net/blog/category/dahdi/
http://blog.paulsnet.org/?p=44
http://docs.tzafrir.org.il/dahdi-tools/?C=S%3BO=A

Q2, Howto: OSLEC echo canceling + DAHDI 2.1.0.4 + Asterisk 1.4

please refer this:
http://www.asterisk.org/forum/viewtopic.php?p=125314&sid=9515c7b03cb14dc698e89467c3d49a86