NEW YORK — Nearly 40,000 striking Verizon employees will return to work Wednesday after reaching a tentative contract agreement that includes 1,300 new call center jobs and nearly 11 percent in raises over four years but also makes health care plan changes to save the company money, the company and a union said Monday.

The pact, subject to approval by union members, stands to end one of the largest strikes in the United States in recent years. Workers and Verizon Communications had reached an agreement in principle Friday but hadn’t released details or a date for the workers’ return. They struck in mid-April.

The Communications Workers of America union called the deal a victory for not only Verizon employees, but workers at large.

“We are turning the tide from cutbacks against working people to building a stronger labor movement and strengthening the power of working Americans,” Dennis Trainor, vice president of the union’s District 1 in the Northeast, said.

New York-based Verizon Communications said it was a good deal for workers, customers and the telecom giant alike.

“This will allow our business to be more flexible and competitive,” chief communications officer Marc Reed said.

The International Brotherhood of Electrical Workers union, which represents about 10,000 of the workers, did not comment.

Union members will vote on the deal after returning to work.