/mcpTo list of the call handlers, do the following: Request URI: GET https://<connection-server>/vmrest/handlers/callhandlers Accept: application/json Connection: keep_alive The following is the response from the above GET request and the actual response will depend upon the information given by you: Cisco Unity Connection Provisioning Interface (CUPI) API 463 Cisco Unity Connection Provisioning Interface (CUPI) API -- Call Handler Listing the Call Handlers