In The Deal of the Century, the 1987 classic account by Steve Coll of the breakup of the Bell System, one of the Bell local operating company presidents (pre-breakup) is furious about MCI’s attempts to build microwave private lines for companies. Here he is, arguing to the AT&T chairman that MCI has to be stopped:
There are large amounts of revenues that are vulnerable, which we can preserve if we choke off now. I think you have to hit the nails on the head.
The AT&T Chairman, John deButts, eventually follows his advice - and when MCI comes to AT&T asking for interconnection agreements in major cities so that it can sell private line services, AT&T delays, avoids, and then directly challenges MCI. Coll says deButts “call[ed] for nothing less than a public anointment of Ma Bell’s right to exercise its monopoly in the national interest” in this speech: