The Red Sox bullpen phones didn't work and there was mass chaos at Fenway Park | MLB.com
MLB okays Apple Watch for use in the dugout, cell phones still banned | AppleInsider
A Coach In A Baseball Dugout Speaks On The Phone Poster by Benjamin Schwartz - Fine Art America
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Yankees were fined $100,000 for improper use of dugout phone - NBC Sports
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Boston Red Sox Dugout Telephone - Telephones located at the Boston Red Sox dugout at Fenway Park. One of the phones is used to call the bullpen during a baseball game. Available
Landlines, you're out! T-Mobile to make MLB bullpen calls wireless - CNET
Baseball Dumping Dugout-to-Bullpen Landlines - The New York Times