Capacity and coverage planning, ODSC channels and its coverage radius, TAC,LAC,NAC, RRC,eRAB, S1 signalling. LTE interfaces and their functions, PRB formations and no of PRB required to support single volte user, Capacity of 2300 band in terms of users, MME and its significance, MME unavailable in the system then what will happen? Volte call flow, and coders of LTE and 2G