BHCC This topic has 0 replies, 1 voice, and was last updated 24 years, 1 month ago by Dimitris Pol. Viewing 1 post (of 1 total) Author Posts 3rd November 2000 at 16:20 #33099 Dimitris PolGuest How van I calculate the BHCC of a specific PABX system. Is there any relation between BHCC and BHCA value? Author Posts Viewing 1 post (of 1 total) The forum ‘Telecom Design’ is closed to new topics and replies.