very rude

i work in a busy call center as sales consultant.<br> STD bank home loan consultant called me and I told him that I was busy with a client couldn't speak at the time.<br> <br> he then told me that \ the fact that you have answered the phone it means you are available to speak"the tone of his voice was so irritating and unprofessional.<br> really ???<br> I am now being threatened and harassed to answer my work phone for things not related to my work"""