Annoying call, it hangs up when you answer.

cold call marketing. hangs up. doesn't leave a message

Hangs up when you answer and says goodbye

I keep getting missed calls from this number (with broken Caller ID as the number is actually disconnected).

Please lodge a complaint about it to ACMA if you receive - as busted Caller ID is a ground for a complaint alone (even if you are not on the Do Not Call Register) - https://www.donotcall.gov.au/consumers/lodge-a-complaint/lodge-a-complaint/

Yes CONFIRMED.. Hangs up when you answer

in that case suggest adding it to your blocked number list

Keeps calling and when answered it just hangs up.

Received a call from this number; let it go to voicemail but the only message left was "goodbye". That sounded suspicious and automated. Thanks to automatic callr blocking feature - they are now in auto-reject list - problem solved!

Just keeps calling and hanging up

step 1: add this number to you favorites list: +1 214 666 4321
step 2: when energy compare (or any telemarketer you don't want to call you) calls you, conference in the number at the top
step 3: put yourself on mute, grab a beverage and prepare for hilarity

Note: this will cost you a US call