Automatic number identification
An automatic number identification system in a tributary office having simultaneous dual operation for high traffic capacity. A pair of identifier units applying identification signals via the sleeve wire associated with the calling stations to a common matrix or directory number network.
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An automatic number identification system in a tributary office having simultaneous dual operation for high traffic capacity. A pair of identifier units applying identification signals via the sleeve wire associated with the calling stations to a common matrix or directory number network. |
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