Assign Failure Ration (AFR) This topic has 0 replies, 1 voice, and was last updated 16 years, 10 months ago by Laksminarayana. Viewing 1 post (of 1 total) Author Posts 21st June 2007 at 07:04 #47906 LaksminarayanaGuest Hi for all, What is meant by AFR exactly. Due to AFR Drop call rate will increase.Is there any relation between AFR and drop call rate Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.