One example method of operation may include identifying a plurality of mobile device telephone numbers associated with a plurality of mobile devices, forwarding the plurality of mobile device telephone numbers to a content delivery device, hashing the plurality of mobile device telephone numbers, storing the hashed plurality of mobile device telephone numbers in the content delivery device, identifying a scheduled call campaign to the plurality of mobile devices, forwarding call content associated with schedule call campaign to the plurality of mobile devices prior to calling the plurality of mobile devices, and responsive to receiving confirmation that the content was successfully forwarded to the plurality of mobile devices, initiating a calling device to begin calling the plurality of mobile devices.