With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ctsMIBSessionsObjectGroup
cts MIB Sessions Object Group
1.3.6.1.4.1.9.9.630.2.2.1
This group of objects maintains informative data for each Telnet session on a device that runs Telnet Server.
Back to CISCO-TELNET-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor ctsMIBSessionsObjectGroup 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.