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We consider a single server retrial queue with infinite capacity of pri- mary buffer and finite capacity orbit to which customers arrive according to a Poisson process and the service time follows Phase type distribution. The customer induced interruption while in service occurs according to a Poisson process. The self interrupted customers enter into orbit. Any inter- rupted customer, finding the orbit full, is considered lost. The interrupted customers retries for service after the interruption is completed. We investi- gate the behavior of this queuing system. Several performance measures are evaluated. Numerical illustrations of the system behavior are also provided.