Unfortunately the DVR-208B can not be used with Control4 due to no support of the SDDP protocol.
The following DVR's support the SDDP protocol and are compatible with Control4:
LILIN DVR-304, 308 & 316 - (Security Tab integration only)
LILIN DVR-508 & 516 - (Security Tab integration only)
LILIN DVR-708 & 716 - (Full integration)
LILIN DVR-816 - (Full integration)
No older models of DVR are compatible with Control4..