Summary of main features of emergent and traditional users’ call logs and contact-books.

Emergent users had a mean number of 100.9 (s.d 94) contacts which is quite low as compared to traditional users’ mean contacts i.e. 609 (s.d 385). The mean number of outgoing calls i.e. 337 (s.d 627) of emergent users was almost half of the traditional users’ mean number of outgoing calls i.e. 670 (s.d 434). Similarly, emergent users’ had a lower mean number of user pairs i.e. 73 (s.d 53) as compared to that of traditional users i.e. 1369 (s.d 79).