TEMPE, Ariz. -- Bruce Arians knew how John Harbaugh felt Monday night when he claimed his headset went out during the Baltimore Ravens' crucial final drive.
During a game in Baltimore earlier in his career, Arians heard a hot dog vendor on his headset while he was trying to radio in a fourth-and-1 call.
"The hot dog vendor came on and started talking about how they needed hot dogs in some section, and we couldn't get the play call," Arians said Tuesday afternoon. "A coincidence."
After Arizona won 26-18, Harbaugh said the sideline lost communication with quarterback Joe Flacco on the finale drive, which ended with Cardinals safety intercepting Flacco with 6 seconds left to secure the win.
"The phones were going out," Harbaugh said. "We lost our phones.
"We couldn't hear. I don't know why they were going out on that drive."
Arians said headset problems "happen a lot on the road."
Arians said the Cardinals' headsets "always" worked Monday night. He said the NFL never asked the Cardinals to turn their headsets off because the Ravens' were allegedly malfunctioning.
"If they had a problem," Arians said, "they should have notified the referee and the referee would have notified us."
In fact, the NFL would not have needed to ask the Cardinals to cease using their coach-to-player communication if the Ravens' had complained during the game. According to NFL rules, the coach-to-player communication system does not fall under the league's equity rule, meaning the team whose headsets continue working don't need to discontinue using them.
However, if the Ravens' coach-to-coach communication was disrupted, then the Cardinals would have had to remove their headsets and both sides would have had to use walkie-talkies, per the rules.