I inherited a BCM 400 3.5 through a company acquisition and I’m getting user complaints of random calls dropping. Both inbound and outbound. 12 trunks, 3 analog trunk modules. The users state they will be in the middle of a conversation and they just hear dead air on both ends, no dial tone is returned. I’m new to the Nortel BCM and was looking for some direction, are there any type of logs or alarm monitor that may point me in the right direction. If so where are they located in the tree? Also any analog trunk parameters that I could check? To this point I have been unable to duplicate the problem. I also have another BCM 400 that I could swap modules with if need be. Any help is greatly appreciated.