pcm vs erlang This topic has 1 reply, 1 voice, and was last updated 14 years, 6 months ago by prof. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 5th August 2010 at 06:57 #63948 aymanGuest how many pcm i need to support 3 erlang 5th August 2010 at 14:30 #63949 profGuest Dear u need 10pcm this is being calculated by =nbtrunks(erlang value,0.001)where 0.001 is the grade of service Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Telecom Design’ is closed to new topics and replies.