7 months ago , we installed CS1000E rls 5.0 ,I`ve done the upgrade for the loadware and installed the deplist , Last week while we tested the CPPM redundancy , I`ve rebooted the first CPPM witch was active , suddenly the second one also reboot ,all phones was down , and the strange thing all MGC sequentially rebooted and the system go back to the default loadware . Any explanation for that please and why the second CPPM doesn’t handle the phones ??