hiii, please i have a customer who wants to upgrade his Cisco Unity from 4.0(4) tp 5.0.1, i wanna know if we need only 1 upgrade file to do it, or it is complicated, can have procedure please..manyy thanks

Hii, what is the max number of participants supported by CCM 7.1 ou 7.0 for audio conferencing, and how can increase the number of participants (15 for exple)..Thanks