The Giants are cooperating with the NFL in its investigation of the team’s illegal use of a walkie-talkie to communicate with quarterback Eli Manning from the sideline in last Sunday’s game against the Cowboys, coach Ben McAdoo said Friday.

“We’ve touched base with the league. We’re working through it right now,” McAdoo said. “I don’t have anything to add, but we are working with the league.”

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McAdoo declined to elaborate on the incident, which occurred in the fourth quarter. It has been reported that McAdoo’s headset briefly malfunctioned, leaving him unable to relay play calls to Manning via the coach-quarterback communication system. The Giants eventually figured out that a walkie-talkie could be used to get the plays in and McAdoo used it to call the plays on that series, which ended with Manning throwing an interception.

League policy prohibits coaches from using walkie-talkies to talk to quarterbacks because there is no cut-off switch. Communication between the sideline and the field is cut off with 15 seconds remaining on the play clock.

Said McAdoo: “We’re working through the league, doing the best we can right now to help the investigation, and we’ll move on when we can move on.”