Chamberlain called a premature end to the third quarter of the Adelaide and Hawthorn clash at Adelaide Oval, as Hawks forward Luke Breust was running towards goal.
But when alerted by fellow umpires that the siren had in fact not yet sounded, Chamberlain called a ball-up before the siren rang a second or two later.
The League confirmed on Saturday it had reviewed the incident and, although unsure what noise Chamberlain had heard, was content with how the situation was managed.
"There was a noise that the umpire heard through his earpiece which he'd turned up to maximum volume, obviously because of previous issues at Adelaide Oval," AFL media manager Patrick Keane said.
"We're still trying to identify what the noise was, but it was not the siren. Obviously he called time, as soon as the others umpires alerted him that it was not the siren, he restarted play with a throw up and then the siren went.
"There was some sort of noise that come from the earpiece which was not the siren, [and] the quarter finished at the correct time."
Likening the situation to when an umpire incorrectly pays a mark and then restarts play with a ball-up, Keane said Chamberlain's actions were in keeping with process.
"He thought it was a sound for the siren, but it wasn't, so once it's become apparent to him and the other umpires it's not the end of the quarter, (he should) restart play," he said.
The decision was discussed post-game with each of the umpires, and the AFL timekeepers.
Chamberlain had turned his earpiece to full volume after past problems with the siren's sound at the AFL's newest venue.
In round nine, Adelaide's Josh Jenkins kicked a goal against Collingwood on the three-quarter time siren, but coaches, players and spectators struggled to hear it, such was the noise of the crowd.
This led the AFL to install six additional siren banks at the ground to ensure those inside the stadium can hear the alert.
