Methods of obtaining call processing instructions for a call to or from an analog telephone in a switched telephone network are disclosed. The methods include receiving a notification of the call at a service switching point (SSP) that serves the analog telephone, and sending a call processing instruction request to a network element that is also coupled to a data communication network. The methods further include translating the call processing instruction request to a translated request having a format suitable for transmission over the data communication network, and sending the translated request to a feature server over the data communication network. The translated request is analyzed to determine a call processing disposition for the call, and a response is sent to the network element over the data communication network identifying the determined call processing disposition for the call. The response is translated into a format suitable for transmission to the SSP, and the translated response is sent to the SSP. The call is processed based on the translated response.