Comment #10 on issue 915 by baranowb: Support for MAX_DURATION in Player. http://code.google.com/p/mobicents/issues/detail?id=915
max duration methods are coded in signal gens, however mgcp controller/signal generator does not understand your option:
org.mobicents.media.server.spi.ResourceUnavailableException: Unknown extension: http://server/audio/ademco_handshake.wav MD=180000
ie. there is no player for MD=180000, so audio player throws exception.
