Steve, >providers (I tested this out on my own phone and it worked perfectly well), but wouldn't I need to know not just the phone number of each client but also which network they use?
One of the systems we wrote for a customer needed to text message sales people when a certain event happened. Since the application was using a database, we just added a column to store the exact e-mail address to use when sending a text message to a given salesman in a table containing other data about each salesman. All the app did was lookup e-mail address for the given salesman and send the text message using that address. This customer had salesmen using 3 different cell phone providers. Each of the providers had an e-mail gateway for text messaging. If your app is not using a database, you could have a simple text file or an INI file containing a salesman ID and the e-mail address and your program could load the file or read through the file to lookup the e-mail address. I have been doing projects like this for quite a few years and so far have never encountered a cell phone provider that did not have an e-mail gateway for text messages. Glenn Lawler www.incodesystems.com
