Hello,

Recently I came across the same issue in OCSMs of two different operators: all the graphs in the system became of the saw shape without any apparent reason. Also number of active session had grown twofold and exceeded the limitation of the license.

The problem is not in OCSM but in SBC. When comm-monitor is connected via wancom0 along with other services like CDR, HDR, LI, backup, SNMP, the system cannot push all OCSM related data within one session. While SBC keeps buffering the data, OCSM closes TCP connection on its side, so SBC is forced to create new session. Consequentially SBC fails to transfer some part of the data (that's why sometimes we cannot find some calls in history). Oracle recommends to connect comm-monitor via media-ports. One important note: the network-interface itself is