Magento - Send SMS to change order status

Here is description for what I need: The ship-guy send an SMS containing the Order\shipment ID with his status - delivery successful\failed ext Magento gets this data & make the proper operation. Requirements: Full Solution, also works inside Israel simple & elegant code easy to add more operation to be implemented Security & password - IMPORTANT! Magento ver 1.5 Please bid only if you are right for this job & knows to work in independent way.