radius authentication support for telnet server.

Hello Friends,I want to authenticate telnet users using Free Radius server. I have pam_radius_auth.so and configured it for ssh which is working fine. For telnet also I have created a file "/etc/pam.d/telnet"  and trying to authenticate using freeRadius server. But it is not happening. Kindly let me know how can i authenticate telnet users using freeRadius? Thanks & Regards,Vijay S.