This read-create Integer32 (0-6) specifies how many pairs of the dual-frequency cadence must be detected before VISM confirms the tone, even though the DSP is capable of detecting up to ten pairs. An admin raises this value to require more cadence repetitions before confirming a tone, reducing false positives at the cost of slower detection. For example, an admin seeing spurious tone detections on a noisy line might increase vismFreqNumOfCadenceMatch to require more confirming cycles before VISM reports a match.