Rohith Perera, 28, who on average receives 10 to 15 missed calls during office hours daily, notes that some of his colleagues also used it as a ruse to skip long meetings, as executives will excuse themselves to answer calls outside the meeting room.
"Sometimes outsiders want you to call back from workplaces, because it's the office that picks up the cost of the call," Perera said.
But "ring cut" signals can also backfire.
Roshan de Silva says he has "missed" meeting his girlfriend when his phone was on silent mode.
"It's also a disaster when the networks are busy and you can't get through to leave a missed call," he said.
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