Tips for dealing with extremely passive aggressive candidates over the phone?

I’m wondering if someone can help on how I can manage this situation better?

I spoke to a candidate today who when I mentioned the salary started getting highly angry and started having a go at me on the phone (not abusive but very passive aggressive) so I said to him “thank you for your time have a nice day” and ended the call. I will add I had asked his salary before and knew it was too high and said the client can’t pay that much so we will leave this and let you know if more suitable roles. He then asked for the salary and what the role was. 

Immediately he called back and launched into a rant at me for cutting him off and how extremely rude I was and repeating over again he was taking this further and recorded the whole conversation and carried on with where he was on the previous call lecturing me about the salary and how offensive it is and asking about the client (I never told him this I only told him the location) and I could not get a word in edgeways to apologise I ended up managing to speak in and apologised and explained this area was not my expertise and This was the salary given by our client and trying to reason with him and explain that I did not intend to insult him. 

He ended up cutting me off before I could resolve it threatened to go to my manager saying I was making the company look bad and hung up (a worse way than what he was angry about me doing originally) 

Can anyone give me some tips on how I could have better managed this?