With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cpmDS1TotalTimeInUse
cpm DS1 Total Time In Use
1.3.6.1.4.1.9.10.19.1.1.9.1.10
The total call duration on all the DS0s within this DS1 since last system re-initialization. This only includes DS0s configured as bearer channels, not those configured for signaling, such as PRI D-channel.
Back to CISCO-POP-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cpmDS1TotalTimeInUse on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.