Like a persistent doorbell, the calls from this number keep ringing until you ignore them. The pattern points to a market research firm running automated phone surveys. They often leave no voicemail and rely on quick answers, which is why many just hang up. If you’re tired of the interruptions, let the call go to voicemail, then block the number in your phone settings. You can also register your line with the national do‑not‑call registry and request removal directly from the company's website. Staying calm and not engaging is the easiest way to shut down these nuisance outreach attempts.
Had you done some research, you would have discovered that this number belongs to a telephone survey company, and you could have also found out how to opt out of their calls on their website.
This number, 215-302-2315, called me two evenings in a row, I picked up the phone and hung up immedately without saying a word, I've seen the name Dynata many times but I never bother to answer and they never leave a message.