With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmeEphoneActivityStatus
Cisco Call Manager Express Ephone Activity Status
1.3.6.1.4.1.9.9.439.1.2.6.1.4
Current status of the Cisco IP phone as seen on this device. onhook(1) - Phone is on-hook. offhook(2) - Phone is off-hook. ringing(3) - Phone is ringing. paging(4) - Phone is receiving an audio page.
Back to CISCO-CCME-MIB MIB page.
IPHost Network monitor allows you to monitor ccmeEphoneActivityStatus on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.