Hi,
My client wants to upgrade Cisco 3825 with c3825-advipservicesk9-mz.124-24.T3.bin IOS to 15.X version. There is CUCME installed and working.
He wants to buy smartnet and download latest 15.X version IOS. Does he need to buy any additional licences to make CUCME working (as far as I know, when 15.X version IOS is installed, any special functionality needs its own licence) or "Cisco CallManager Express Feat Licence Up To 144 Phones" licence bought with Cisco 3825 is enough?