An automated mapping of buildings for purposes of estimating population densities is interesting approach. Three pilot countries have started projects in CDR anonymization and storage. There is a known organisation on data analytics which has approached one of the countries to collaborate and provide the country with an analytics platform related to health and epidemics. CDR analytics can also provide valuable information to target the right age group in order to improve access to, and quality of, sexual and reproductive health education and services for young people's levels. As one shoe does not fit all, but some. Also, different age groups absorb differently the available information.
Do you think that collection and storage of anonymized Call Detail Records (CDR) Data on national level would help? Once you have that data and combined with other data sources creates foundation for big data which can be open (open data policy on national level) to 3rd party analytics organizations to develop and use various platforms for analyzing the data instead of having one national/regional common platform. As we are aware a unique data-set can be used for different purpose. Example: In case of an emergency, mobility of citizens can help medical teams to plan their human resources to respond more efficiently by knowing what is expecting them. The same information can help international humanitarian community to deploy teams at the right places in neighboring countries with the right amount of resources such as food, tents, etc. (my comment is general not only focused on the challenge)