A username AND password is required for every device to be monitored.
TCP: 23 (Telnet)
TCP: 2000 (SCCP)
The Cisco Call Manager Express / UC500 connects onto the LAN via one of the RJ45 sockets on the front of the PBX. The local IP address and other network settings are set through the HTML-based programming interface.
Firmware Requirements (for new installations):