With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ds0CasFlashMinMakeTime
ds0 Cas Flash Min Make Time
1.3.6.1.4.1.351.110.4.7.1.1.27
Flash is a CAS signal generated by users to request special services. The interpretation of the flash depends on the protocol in use. The signal itself is an on-hook followed by an off-hook. This object specifies the minimum duration for the signal to be recognized as a flash by VISM. This duration, expressed in milliseconds, is defined as the elapsed time between the off-to-on-hook transition followed by the on-to-off-hook transition. If the on-hook duration is shorter than the value of this object, the signal will be ignored. This object cannot be configured if the signaling type for the line to which this ds0 belongs is non-CAS. For a CAS line, this object can only be configured after associating this ds0 with an endpoint. If no endpoint was added for this Ds0, any configuration attempt will be rejected. This object will be applicable if ds0CasParameterSource has a value of mibvalue (2). The allowed range for this object is 50..1550.
Back to CISCO-VISM-DSX0-MIB MIB page.
IPHost Network monitor allows you to monitor ds0CasFlashMinMakeTime 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.