I Fully understand your needs i have worked on this type of project in University. I use GSM Modem of Simcom sim300cz to get a call and then interfaced it with visual basic using the serial port of my computer and recorded all the details in Microsoft Access.
I guarantee to handover your project in 20 days with ease.
I am an Electronic Engineer and is good in Hardware and Software Programming. usually working with microcontrollers and C language