Here in the states, the call is only transmitted to the monitoring station in the building. Some installations such as universities may transmit a call to the university police department. I'd bet that the apartment building doesn't have security or desk staff, so the call went unanswered. When I worked security for a major insurance company, anytime someone pressed the alarm button or lifted the handset, it would open a line between the car and the monitoring station. In our situation, the monitoring stations for each building's elevators was co-located with the fire detection systems panel at the appropriate guard station. Both stations were manned 24/7.
If a elevator entrapment occurred, the person on the car would contact us via the intercom handset and we would notify the elevator service company. They in turn would page the serviceman on call and send him to our location.
[Edited 2008-01-04 11:26:35]
"When a man runs on railroads over half of his lifetime he is fit for nothing else-and at times he don't know that."