One of best revenue management system I have used as it covers all things like customer life cycle analysis & churn to cost optimization for telecom services using both mobile data plans an SMS plan which makes this product quite special one amongst others! For example we are able tracking customers' usage across our channels (mobile voice only) by service level agreements along the way till they get paid off completely! Amazing feature would be : 1.) Real time tariff update notification2). Automated email campaigns3.). Bill pay4.): Unlimited number(s)-ability5): Cross channel promotion6)."Customers" - Customer profiling, upselling opportunities7)/ Cost Optimization8); Churn/Customer retention9)] I like how easy it was to integrate into our CRM system as well as their customer service team. They are very quick to respond. Their implementation process took less than 2 weeks for all of us. The only thing we don't love about them is that they have some limitations when it comes to integrating other systems such as Salesforce which makes things difficult sometimes. We were looking for an option that helped us keep track of leads as well as sales opportunities. This has worked great for us!