Boy, this is wrong forum for discuss abt this but here's what I do whenever I make any relay calls and company/pp hang up on me.
I always tell relay operator DO NOT ANNOUNCE YOURSELF AS RELAY OPERATOR but rather say "this is (your name) and proceed with what you want to say". Sometime I would say, " I am speaking for other deaf person who need help. blah.. etc.." So that way it is still third party conversation.
The reason why hearing people hang up on you is because they might thought relay service is spammer or adversiting service.
Sad, there are some hearing people who are clueless and its our responsbility to educate them
