Currently I have a  VWIC2-1MFT-E1 and VWIC2-1MFT-G703 to install a voice link E1,  and a Cisco 3845 router equipped with PVDM2-32. The  only information I have is that the E1 will be channeled and unbalanced, so I would  like to know which of the two interfaces I use, what configuration and if I  also need something else.

Thank  you very much for the attention.