The customer is looking at the UC560 solution. They have a database of their customers on the Truckmate solution. When a call comes in, they want the calling number to pull up their customer information on the screen from their truckmate solution. Is this possible with the UC500 ?
You have to ask the software vendor about witch protocol they interface the phones system, for example TAPI, that is supported by the UC500. If they just want to launce a web page based on calling number, you can also use the TAPI Web Launcher that I wrote and can be acquired from my website - mentioned in my profile.
Note unless you have previous experience with telephony and networking, it is recommended that you engange a certified Cisco partner, or person with equivalente knowledge and expereince, for both the pre-sale and deployment of the product.