The Presidency reports that the 911emergency line services were affected from 9:10pm to 10:30pm on Thursday evening, 18 September 2014 due to a technical fault by the Claro telecom provider. The company said that calls made via other providers, including Orange, Tricom and Viva got through normally.
http://www.presidencia.gob.do/noticias/problemas-tecnicos-de-claro-dificultaron-llamadas-al-911