With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvVoIPCallHistoryModeChgPeriod
Cisco Voice Vo IP Call History Mode Chg Period
1.3.6.1.4.1.9.9.63.1.4.2.1.36
The object indicates the interval (N frame-blocks) at which codec mode changes are allowed. This object is not instantiated when the object cvVoIPCallHistoryCoderTypeRate is not equal to gsmAmrNb enum.
Back to CISCO-VOICE-DIAL-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cvVoIPCallHistoryModeChgPeriod on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.
