Java Software Automatic Call Distribution for Internet Telephony The ACD for the GNU Gatekeeper lets you build a call-center with free VOIP components using the H.323 standard. Currency Conversion The package com.willamowius.finance provides a currency converter and a supporting tool to fetch the daily Euro reference rates from the European Central Bank. It is meant to be included into custom applications that need currency conversion. It is provided including source under GPL license: