With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgprsCgCdrOptionRatType
Cisco GPRS Charging Cdr Option Rat Type
1.3.6.1.4.1.9.9.192.1.1.54
This object when set to 'true' includes Radio Access Type (RAT) IE in the G-CDRs and sent to CG. RAT, indicates whether the SGSN serves the User Equipment (UE) by Universal Terrestrial Radio Access Network (UTRAN) or GSM/EDGE RAN (GERAN).
Back to CISCO-GPRS-CHARGING-MIB MIB page.
IPHost Network monitor allows you to monitor cgprsCgCdrOptionRatType 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.