Operation
2.2 Call Taking Mode
In Call Taking Mode, there is no radio connection. The audio sensing of the PAC
module is used to trigger a relay closure whenever a phone call is answered,
providing “recorder active” signals and a 600 ohm analog link for local voice
recording (see Section 2.3).
2.3 Voice Recording
Voice recording is achieved by capturing the audio of phone calls (and, if available,
radio communication) and sending it to a local recorder. Operators can then usually
access portions of the recording (Instant Retrieval) on demand.
Phone audio is sent along with a signal that triggers on the presence of a phone call
so that recording takes place only when a call is answered. Radio audio is sent
continuously and must rely on VOX detection within the recorder.
Table 2: Voice Recording
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