With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
c3gConnectionStatus
Cisco 3G Connection Status
1.3.6.1.4.1.9.9.661.1.1.1.8
Indicates the current connection status.
Back to CISCO-WAN-3G-MIB MIB page.
IPHost Network monitor allows you to monitor c3gConnectionStatus on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.