Callinspector

Callinspector is instarea's telecom expense management platform. It is deployed as SmartBill (whitelabel) at Slovak Telekom, where it still runs in production at smartbill.telekom.sk serving millions of subscribers with bill analysis and cost optimization.

Callinspector/SmartBill has been in production since 2010 — over 15 years of continuous operation. It was originally deployed on-premise for clients like Slovenské elektrárne and Messer Tatragas, and later evolved into the cloud-based SmartBill service at Slovak Telekom.

Callinspector analyzes telecom bills and usage patterns to help subscribers and businesses optimize their mobile costs. It provides detailed call, data, and SMS breakdowns, identifies cost-saving opportunities, and recommends optimal tariff plans.