I get multiple phone calls, but they apparently didn't hang up and recorded on my voicemail a conversation in Arabic. It seems they are telemarketers from another country doing some business in USA. I blocked this number also. They also have other #'s they use.
They called every day this week on my landline and once on my cell, both of which are on the do-not-call list, what a joke. Since I never answer unless I recognize the caller ID, don't know who or what they're pushing. The never leave a message.
A little Googling tells me it's "Azure Knowledge Corporation," a market research company. Their contact info on their web site confirms this. I'm guessing they were probably calling about some survey. Didn't answer. Now blocked.