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Tone" choice. This feature is always disabled if no Burst Tone Select keys have been
programmed.
Channel IRR Keys
These keys can only be used with the Universal Dual Channel Card (950-9819 or 950-
9820) and act on the currently selected channel. If more than one channel is selected, the
key is ignored. A complete description of the Channel Instant Recall Recorder functions
can be found in the Series 4000 Communications Control System Operation Manual (P/N
025-9535).
Note
Play/Pause
This key starts IRR playback at the current playback message pointer if the IRR is stopped
or paused. It stops IRR playback and enters the pause mode if the IRR is playing. When
the IRR is playing, it is automatically set to the pause mode when a call is received or any
transmit occurs on the channel.
Rewind
If the IRR is not playing, it enters the pause mode and the IRR playback pointer is moved
back one message each time the key is pressed until the oldest message has been reached.
If the IRR is playing, it enters the pause mode and the playback pointer is moved to the
beginning of the message that was playing (such that pressing the PLAY key will then re-
play that message).
Reset
This key cancels IRR playback or pause, and resets the playback message pointer to the
beginning of the most recently recorded message. This function has no effect on the record
mode.
Record
This toggle key enables the IRR to record all transmit and receive audio on the channel if
currently disabled. It disables IRR recording if currently enabled. This function is
recommended for supervisory consoles only.
Transfer Keys
These keys are used only if the optional Telephone Line Interface (950-9112) is connected
to the desired channel. The transfer keys are used to "Transfer" the desired function
temporarily to another key in order to save key space.
Description of Key Functions and Parameters
If Mute All Idle Channels is not enabled, systems using Channel
Check IRR will cause audio playback activated from one console
position to be heard at all positions. See
page 213.
Mute all Idle Channels
on
385
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