This was discussed in another thread: they claim to be a survey company (so they can get around the DNC regulations, which don't bar survey callers) and as LAB pointed out, they use a name with the initials SSI in an attempt to fool people into answering. As for doing something!!!!, that's entirely up to you, not to anyone here. You have to learn not to answer, to ignore, or to block the calls.
Relentless phone stalker. Predator habits & traits that need amortizing. These scum re sell anything & everything they can spoof from you to other lazy phone trash. Cubical scum!