Customers using Irish Rail services shouldn't be listening to devices without headphones.
That's according to Iarnród Eireann's Communications Manager, Barry Kenny, who said the company is considering expanding its quiet carriages initiative.
The rollout on the Cork to Dublin route has seen some passengers misunderstanding exactly what it means.
The designated low-noise carriage has been available since November, aimed at providing a more comfortable journey to passengers.
Mr Kenny told The Pat Kenny Show passengers should be mindful in general.
"It is public transport and people do need to be mindful of people that they are travelling with," he said.
"We would say it generally, not just in the quieter coach, but people shouldn't be listening to devices without headphones, or putting up a volume that disturbs other people.
"That's a general rule that we would have throughout the train - but obviously, in particular, we want to ensure that's observed in that area".
"The response we have from this [has been] very, very good".
'It's very visible'
Mr Kenny said the initiative has been well received.
"It's an area where customers can choose to book; it's very visible in our booking process, and also on the train itself," he said.
"Obviously - mobile phones - we rely on our devices a lot, but it's an area where people will choose to travel either in some cases with people who have hidden disabilities... or people who just want to have that little bit of a quieter area".
The Irish Independent reports that staff were faced with confrontation when they asked passengers to keep their voices down or end phone calls.
Mr Kenny said this is old information.
"I wouldn't agree that it went awry, we had very good reviews with out staff," he said.
"The information in newspapers today was from the second week of its operation, where they are seeing the real-world reaction as people encountered this for the first time.
"So that we can ensure that, with our teams onboard, we can talk to customers and help them understand what's' intended".
'The demand is there'
Mr Kenny said this has been in response to customer feedback.
"The main impetus was working with representative groups for people with hidden disabilities, particularly with sensory issues," he said.
"We have also had general customer feedback, saying 'We'd like a quieter area'.
"They probably are booking a little bit quicker than the other carriages overall, which shows that the demand is there.
"Obviously we'll look at that in terms of [the] possible extension of it, both on the Dublin-Cork route and on other services," he added.