In ETM® System v7.0.1 and later, Voice Firewall and Voice IPS Policies can specify
patterns of midcall DTMF digits in rules, and can take specified actions for calls in
which these patterns are detected. Midcall DTMF digits and the timestamps of the
digits can also optionally be stored in the ETM Database for offline analysis.
However, the digits need not be stored to enable DTMF patterns to be used in Policies.
See the attached article for more information.
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