  In this paper, our main aim is to derive $L^p-L^q$ estimates of the solution
$u_k(x,t)$ ( t fixed) of the Cauchy problem for the homogeneous linear wave
equation associated to the Dunkl Laplacian $\Delta_k$, $$\Delta_ku_k(x,t)=
\partial_t^2u_k (x,t),\quad \partial_tu_k(x,0)= f(x),\quad u_k(x,0)= g(x).$$ We
extend to Dunkl setting the estimates given by Srichartz in \cite{Sti} for the
ordinary wave equation .
