Remove access restrictions from all CallManager. A Peripheral Gateway can content several PIMs. You will need one PIM, for example, for CallManager and another PIM for Cisco IP/IVR. There are PIMs for Avaya Definity, Notel Meridian, Ericsson MD110, and much more. You can set up a Peripheral Gateway with two PIMs, one for CallManager and other for IVR. A PIM collects information regarding the peripheral wich is connected (agents, calls, etc.) and it can manage routing petitions from the peripheral to ICM.