I have a question. I am new to Voip, very new and from my call relay box I run G 723.1,however I was given an option on a web page of picking G723.1 (acelp) 5.3 kbps or G723.1 (np-mcq) 6.4 kbps. Can anyone tell me the difference. Also it stated 6.4 kbps and my information given to me is 6.3 kbps. What is the correct kbps? The product is Quintum.