With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmeEphoneFastDialNumber
Cisco Call Manager Express Ephone Fast Dial Number
1.3.6.1.4.1.9.9.439.1.1.45.1.2
This object indicates the configured fast dial E.164 phone extension number that is associated with this Cisco IP phone. No primary number is associated as a default.
Back to CISCO-CCME-MIB MIB page.
IPHost Network monitor allows you to monitor ccmeEphoneFastDialNumber 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.