你这个太深奥了，会把菜鸟搞蒙。我前面的那个比较容易一瓢画葫芦

nb = req.URI.User

sys.Log("call from #{req.Header.From.FromURI.ToString()} to #{nb}.")

case nb
 when /^1?\\d\\d\\d\\d\\d\\d\\d\\d\\d\\d$/ then
  sys.GoogleVoiceCall("johnsmith@gmail.com","gv_password","ipkall_or_sipgate_#","#{nb}",".*",3)
  sys.Respond(480, "#{sys.Username} Not available")
 when /^\\+\\d{3,}/,/^00\\d{3,}/,/^011\\d{3,}/ then
  sys.Dial("VoipDiscount")
  sys.Respond(480, "#{sys.Username} Not available")
 else
  sys.Respond(480, "#{sys.Username} Not available")
end