A supporting system of voice analysis for emergency call centers is being developed at AGH University of Science and Technology in Krakow. The aim of our work is to provide an innovative supporting tool for rapid and accurate assessment of caller profile. The project covers not only speaker identification (when speaker's speech sample is known), but also speaker's gender and age detection, recognition of emotions, recognition of acoustic background. The system consists of: speech signal analysis, voiceprints learning, adaptation and classification.