Rare card
No. 4 Electronic Switching System
- Value
- 50 W
- Attack
- 719
- Defence
- 575
- Players
- 0
The No. 4 Electronic Switching System (4ESS) is a class 4 telephone electronic switching system that was the first digital electronic toll switch introduced by Western Electric for long-distance switching. It was introduced in Chicago in January 1976, to replace the 4A crossbar switch.
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