5ESS Switching System

（重定向自5ESS Switch）

The 5ESS Switching System is a Class 5 telephone electronic switching system developed by Western Electric for the American Telephone and Telegraph Company (AT&T) and the Bell System in the United States.

单词	5ESS Switch
释义	5ESS Switch 英语百科 5ESS Switching System （重定向自5ESS Switch） The 5ESS Switching System is a Class 5 telephone electronic switching system developed by Western Electric for the American Telephone and Telegraph Company (AT&T) and the Bell System in the United States.
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