Asterisk Order Status

Looking to create an order status system between asterisk and magento commerce? ([login to view URL]). I would like customers to be able to call our number and hit 3 (or some number) to be directed to order status prompts. Customer would enter their order number and zip code of the billing address (for security). If the order number and zip code are related the order status in magento is read. If the order has been shipped I would like the shipping method? and tracking number to be read with the time of the shipment. All of the communication with magento should be done using the magento api. If possible I do not want to upload any files to magento. I only want to create an api username and api key in magento. All files should be on our local magento box. This will potentialy be used for many magento stores but it is important to get it working for just one store at first.