I am starting to work with an ASA 5505 ... I have a Cisco CallManager on the network inside the ASA and a network outside in the ASA, IPS settings and paths are perfect and that I can ping both outside and inside networks. when I connect an IP phone ...

by mistake I deleted the flash memory  I reinstalled the IOS in order to install the  software package UC520-7.0.3.zipthe problem is when I attempt to upgrade using the  Cisco configuration asistant application in the 49 per cent of the ipgrade procc...