With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
crpmsCpLimit
crpms Cp Limit
1.3.6.1.4.1.9.10.84.1.2.1.1.2
The maximum number of concurrent calls allowed in this customer profile. Once this limit is exceeded, RPMS will reject any new calls unless an overflow limit (crpmsCpOverflowLimit) is configured for this customer.
Back to CISCO-RPMS-MIB MIB page.
IPHost Network monitor allows you to monitor crpmsCpLimit 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.