With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgkLZoneAllocTotalBandwidth
Cisco Gatekeeper L Zone Allocation Total Bandwidth
1.3.6.1.4.1.9.10.40.1.1.3.1.4
The total bidirectional bandwidth allocated by the gatekeeper to the active calls. This value will not exceed the value of cgkLZoneTotalBandwidth.
Back to CISCO-GATEKEEPER-MIB MIB page.
IPHost Network monitor allows you to monitor cgkLZoneAllocTotalBandwidth on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.