With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmeEphoneRemote
Cisco Call Manager Express Ephone Remote
1.3.6.1.4.1.9.9.439.1.2.6.1.18
True indicates that phone is suspected not to be on the local area network(LAN). This is derived from the ARP entry not seen on this device. False indicates the phone is in the same LAN as device.
Back to CISCO-CCME-MIB MIB page.
IPHost Network monitor allows you to monitor ccmeEphoneRemote 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.
