I also got a call just now but I didn't answer and they did not leave a voicemail. I'm assuming it's a telemarketer.
I just received a call as Monica I tried to call back and just get a busy signal. If it were legit business matters, they would have left a vm and cal back number.
I spoke with the Corp Trust Co is located at 1209 Orange St, Wilmington, DE 19801. Also known as CT Corp Systems
I didnt answer when they called. I did call back 2x's and the number just kept giving a busy signal. Not sure who or what this number is to... but I doubt its for a legit business - as the majority of business has multiple lines or at least has some time of automated answering / message service or give the option to leave a voicemail.