CM11A and GC100 - are that combination receives notifications from wall switch?

[ppiszc]

After review of CM11A driver code I wondering if I connect CM11A using GC100 to the core, the core will receive the notifications from e.g. wall switch.
I assume that GC100 do not send info from RING rs232 pin. Could someone check this? If it is true I have proposal of the fix for this issue.
I just would like to know if this will work before I will buy CM11A and GC100...

Cheers,
ppiszc