I get calls daily, often multiple calls.  I have told them to STOP calling me.  I don't answer anymore.

Got this call at 8:35pm on a Monday night. The caller ID stated SSI.... and since I have been seeking information with them I answered the phone. There was the "pregnant pause".... and I hung up knowing it was just a telemarketer. So frustrating.

If by SSI you mean Supplemental Security Income, their caller ID would not show as SSI. This caller is Survey Sampling International.  They conduct opinion polls, market research and other types of surveys. As such they are exempt from screening against the DNC list before calling. They maintain an internal Do Not Call list but apparently their agents are not set up to place numbers on it and you must opt out by following the instructions on their website:

https://www.surveysampling.com/general/received-a-call

they called multiple times and hung up.  Attempts to go to the website to get off their list have not worked.

I answered and was quiet and heard teens or immature, uneducated young adults laughing. . talking to one another and neglecting to notice someone answered  one of them said    "you gettin' quick doe"      when I said.. I'm sorry,  who is this?  they immediately hung up.