With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
c3gGsmIdentityTable
Cisco 3G Gsm Identity Table
1.3.6.1.4.1.9.9.661.1.3.1
Cellular 3G GSM identity table.
Back to CISCO-WAN-3G-MIB MIB page.
IPHost Network monitor allows you to monitor c3gGsmIdentityTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.