"A United Airlines Airbus A319-100, registration N819UA performing flight UA-769 from Rochester,NY to Chicago O'Hare,IL (USA) with 127 people on board, was climbing through 11000 feet out of Rochester, when the crew reported smoke in the cabin and decided to divert to Buffalo,NY (USA)."
Below is a pic of Airbus A319-131 N819UA (cn 893), the aircraft involved.
Audio is attached below, all dead air and comms not pretaining to UAL 769 has been cut out. You can hear tower talk to the fire trucks, but can't hear response. Nice job by UAL crew and KBUF staff!