Yale is restructuring its Information Technology Services call center, or answering service — a move that could leave several long-time employees behind.

The University is outsourcing its answering service to AT&T at the end of June, David Galassi, director of network services, confirmed in an e-mail May 28. Galassi deferred further comment to University spokesman Tom Conroy, who said June 3 that he did not know the number of jobs affected by the change.

Vice President for Human Resources and Administration Michael Peel did not respond to a request for comment. An AT&T spokesman deferred comment to the University.

According to the ITS website, Yale Call Center Answering Service operators are available 24 hours a day, seven days a week to provide “telephone service after hours,” as well as “during lunch or unexpected absences.” The website says that while many of the center’s customers are in the medical sector, the center also serves other departments, such as the physical plant and hospital custodial services.

Vivian Yee contributed reporting.