With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
c2900PortGroupWC4
Cisco 2900 Port Group WC4
1.3.6.1.4.1.9.9.87.3.2.12
The collection of objects which are used to provide port status and configuration, includes voice vlan id and port-security aging.
Back to CISCO-C2900-MIB MIB page.
IPHost Network monitor allows you to monitor c2900PortGroupWC4 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.