With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmqVoIPCallHistoryTxNoiseFloor
cmq Voice IP Call History Tx Noise Floor
1.3.6.1.4.1.9.9.769.1.2.1.1.50
The instantaneous noise floor level estimate if VAD is enabled.
Back to CISCO-MEDIA-QUALITY-MIB MIB page.
IPHost Network monitor allows you to monitor cmqVoIPCallHistoryTxNoiseFloor on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.