With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cvVoIPPeerCfgBitRate
Cisco Voice Vo IP Peer Configure Bit Rate
1.3.6.1.4.1.9.9.63.1.2.3.1.32
This object specifies the target bit rate. The object is instantiated only if cvVoIPPeerCfgCoderRate is 'iSAC'.
Back to CISCO-VOICE-DIAL-CONTROL-MIB MIB page.
IPHost Network monitor allows you to monitor cvVoIPPeerCfgBitRate 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.