Answer Seizure Ratio (ASR) This topic has 0 replies, 1 voice, and was last updated 11 years, 6 months ago by teletraffic. Viewing 1 post (of 1 total) Author Posts 11th June 2011 at 09:01 #66572 teletrafficGuest Does anybody know what the threshold/acceptable ASR value as per ITU-T Recommendation for International incoming calls? Is 40% an acceptable ratio? What are the usual causes of abandoned calls in international calls? Can ASR threshold values for VOIP be applied in GSM MSC International Calls? Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.