Ringdown Trunk, Idle-Line Termination.

TM-11-5805-587-15-3 Tandem Switching Center Equipment (Preventive Maintenance and Testing) Manual
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TM ll-5805-587-l5/3

4-56. Ringdown Trunk, Idle-Line Termination.

test as described in paragraph 4-46.

4-57. AUTOVON Trunks.

ted in accordance

th the procedures

later at the AUTO

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