Function signature as template parameter

Is it possible to achieve something like this:

template<typename Signature>
class Test
{
    public:
        //here I want operator () to respect the signature
};

Test<void(int)>          t1; //void operator()(int)
Test<void(int, float)>   t2; //void operator()(int, float)

Return type is always void.

I want to send as template parameter the function signature. Is this possible? I can't use variadic templates as my compiler doesn't support this feature yet.