Extended Erlang B This topic has 0 replies, 1 voice, and was last updated 25 years, 7 months ago by Ray. Viewing 1 post (of 1 total) Author Posts 28th April 1999 at 13:59 #32399 RayGuest Where can I find ref material on Ext Erlang B formula and What is the pro and cons of the various Erlang? Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.