أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
If you ask me i will say lync is a complete unified communications which has lot many features liks IM,Video Conferencing,persistent chat etc and CUCM is limited to telephony only..
i think there is a huge difference between them, since lync considered to be a UC product while CUCM only telephony product