I got a call from this number and i did call back but in the same manner they called me, very rude and very angry, i guess it's not so funny once it goes the other way because they just hung up on me. i changed my number alredy and blocked it.

who ever is calling from 2103193992 can not take no for an answer.  They are, I believe a debt collection agency, the person they are looking for has never resided at my number. I have had this number for over 30 years.  They have been told many time over the last 6 months they will never find the person they are looking for by calling my number, therefore there reason for calling will never be resolved.  I would love to have them blown off the earth for the amount of harassment they have called.

Calling my business both lines> demanding young man asking me to press #1 now,
I have left messages for the last 48 hours in a matter in his office:
Does not ask for a person or leave infomation concerning the call.

This is Global Recovery a debt collection agency utilizing local number to trap you into thinking that it is someone local until you answer the call and then you are hook on the phone which will not hang up until after it transfers you to their office. I contacted the phone company who gave them this number and told them what they were doing with this phone number which is against FCC rules also...quit wasting time talking to these debt collectors and find out who their phone companies are...go after them instead by taking them to the FCC and your Attorney Generals office.  We must take away their tool when they miss used them.

we're really tired of this computer generated and very phony kind of phone call,1 have no idea what do they want, 1 don't know of anybody that owe them any money in my home,all they are doing is asking you to call back, this is a very costly mistake,these lousy people are just trying to pin a debt on you and want you to commit in how much you are willing to pay at that time.

someone is calling my home number anytime even on night hours, i think is one of these collection agencies,but don't any debt with anybody

1 been getting these very scary recording male voice at the beginning on my home fphone, 1 made a mistake and called them back,it belong to a collection agency and they claim about a debt with master card, none of the person living at my home owe anything to master card, and they insist that the call will never stop unless 1 pay 1750 that is owe to them, this look like a scam,ray, the supervisor is even willing to cut the debt in half if 1'm willing to give him my personal informations

I love the scary recording they use.  It is hilarious.  Also, the line "of course, I need to speak with you."
Yeah, right...  I need to speak with you means we are trying to find you and pin some sort of debt on you and since we have no legitimate way of contacting the debtor we will use this tactic to scare you.

Simply...hilarious.  What a crappy line of work...

Cheers

They use a fear-based recording tactic to get you to respond.  Once you respond, they will trace your call or ask for info in attempt to go after you for a dept that is either yours or they have tagged it to you for some reason.
ADVICE - DO NOT CALL BACK!  If you are concerned about a credit issue, get your credit statement.  
A lot of times, whatever debt they are searching for is out of the statue of limitations and has been sold to them.  So, you may have no obligation to pay.  They are basically fishing to find somebody or someone to pay them.  What they claim you may owe them may not even be on your credit history due to statur of limitations etc.
Bottom Line - Don't call back!  Check your credit!  Let them fish elsewhere!

Debt collection people.