The number of call attempts that a telephone system can support during the busy hour of the day. BHCAs is a measure of system processor capacity and a factor considered in traffic engineering. See also BHCCs, busy hour, and traffic engineering.
"BHCAs." YourDictionary, n.d. Web. 28 May 2018. <http://www.yourdictionary.com/bhcas>.
BHCAs. (n.d.). Retrieved May 28th, 2018, from http://www.yourdictionary.com/bhcas