ITU Kaleidoscope 2014: QoS and Network Crawling This is the third in a series of three special issues to showcase extended versions of selected Kaleidoscope papers. The first addressed the theme "Towards 5G" and was published in November 2014 (Volume 2, No. 2). The second, published in March 2015 (Volume 2, No. 3), covered"Assessments, Models and Evaluation" to monitor the quality of ICT services.