With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cProxyCallHistoryT120TCPPort3
Cisco Proxy Call History T120 TCP Port3
1.3.6.1.4.1.9.10.57.1.2.1.1.7
Third remote system UDP listener port to which to transmit T120 packets for the call. A value of zero indicates that no port was used.
Back to CISCO-PROXY-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cProxyCallHistoryT120TCPPort3 on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.