\input zb-basic \input zb-ioport \iteman{io-port 01078337} \itemau{Mishra, S.S.} \itemti{A closed form expressions for mean wait under some special cases with service interruptions.} \itemso{Bull. Math. Soc. Sci. Math. Roum., Nouv. S\'er. 38, No.3-4, 175-182 (1995).} \itemab Summary: This paper deals with a multiserver queue that operates in a random environment defined by an alternating renewal process with states 1 and 2. We analyze the problem by deriving a closed form expressions under some special cases such as when time spent in the state 1 is geometric, deterministic and new better than used in expectation. \itemrv{~} \itemcc{} \itemut{multiserver queue; alternating renewal process} \itemli{} \end