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- :% THE GREEN BOX %:
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- The Green Box generates useful tonessuch as COIN COLLECT, COIN RETURN, and
- RINGBACK. These are the tones that ACTS or the TSPS operator would send to
- the CO when appropriate. Unfortunately, the green box cannot be used at a
- fortress station, but must be used by the CALLED party. The tones (hz) are:
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- COIN COLLECT 700 + 1100
- COIN RETURN 1100 + 1700
- RINGBACK 700 + 1700
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- Before the called party sends any of these tones, an operator released
- signal should be sent to alert the MF detectors at the CO. This can be done
- by sending 900 + 1500 Hz or a single 2600 Hz wink (90 ms) followed by a 60 ms
- gap and then the appropriate signal for at least 900 ms. Also, do not forget
- that the initial rate is collected shortly before the 3 minute period is up.
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- DOWNLOADED FROM P-80 SYSTEMS 304-744-2253