With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgprsCgGatewayGroupAccPtNum
Cisco GPRS Charging Gateway Group Access Point Num
1.3.6.1.4.1.9.9.192.1.3.11.1.2
This object indicates the number of access points configured with a charging group for which charging data is being collected. Trigger Condition: This counter is triggered when a CDR is opened for a PDP and that PDP belongs to a new APN.
Back to CISCO-GPRS-CHARGING-MIB MIB page.
IPHost Network monitor allows you to monitor cgprsCgGatewayGroupAccPtNum 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.