With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cmedxGatewayMaxTermsInContext
cmedx Gateway Max Terms In Context
1.3.6.1.4.1.9.10.104.1.1.1.1.5
Maximum number of terminations per context in this media gateway link.
Back to CISCO-MEGACO-EXT-MIB MIB page.
IPHost Network monitor allows you to monitor cmedxGatewayMaxTermsInContext on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.