Employee Cellular Management. Organize your business cell phone accounts with this self-contained consulting software. Track usage and overage histories to make plan adjustments that can save you money. Allocate expenses to specific users and identify excessive costs. Keep track of pertinent user information such as phone numbers, push-to-talk numbers, phone models, serial numbers (ESN, IMEI or SIM) and plan specifics. Works with any provider and can easily be used for extensive or simplistic organization. 30-Day Free Trail.