The present invention teaches a multiple server based interactive voice response (IVR) system in which individual IVR strings on an index computer are associated with connections to external servers, the IVR system index computer accessible by each individual IVR string's self-identification telephone number either from Dialed Number Identification Service (DNIS) information, Automatic Number Identification (ANI) service information, item ID information provided by a caller or a combination thereof. When a call is received to the IVR system index computer, it uses DNIS, ANI and/or item ID information to route the call to string information (outgoing messages, menu options, etc) which might be located the index computer or on a clientele computer. In embodiments, the client business might be able to easily access the information associating options to messages and the message files themselves and change their IVR string without technical support.