Dahdi Asterisk sangoma call does not land on asterisk


I have successfully installed dahdi over sagoma b600 card to work with asterisk.
But call is not landing in asterisk .
I could not installed zaptel as it was showing error before so this forum suggest me
to work with dahdi and it successfully installed at least.

But i fail to land the incoming call on to *

Please help where i could wrong what will i have to show you to troubleshoot this.

I have folowed everything that suggest on sangoma site whether the voltage are in or not

Please help