We have a multiple ports Wavecom-like modem pool (and planning to get more). We use prepaid SIM cards on them. We have no idea how to check which port runs out of money or which SIM card can still send SMS. There are other ways to check but we will have to take the SIM Cards out one by one and insert in a regular cell phone and dial 611 or *777# (AT&T). We can not be doing this because time is of great importance to us.
We need a Program/Tool that can run with few clicks and will display balance of each SIM card
A Program/Tool that will send and deliver a feedback command (it could be a test sms) and display result with corresponding port identity
Your own better way of handling this project to achieving our goal. We are very opened to suggestions