With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmeConfigGroupEM
Cisco Call Manager Express Config Group EM
1.3.6.1.4.1.9.9.439.2.2.6
A collection of object which indicates a Cisco extension mobility IP phone.
Back to CISCO-CCME-MIB MIB page.
IPHost Network monitor allows you to monitor ccmeConfigGroupEM 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.