How to Register your Phone Number on the NoCall List?

https://www.donotcall.gov/register/RegConf.aspx?948F3EB8-BFD0-4BA9-9A6D-3C24773B079A

Google the phone number to get number

Select the model of your Uniden DECT 6.0 phone from the list beginning at scat/dectphones_mnl">http://www.uniden.com/scat/dectphones_mnl to download a copy of the manual.

Are they calling your personal phone, or cell phone or your work phone number? if it is your work phone number you need to inform them they are calling your place of employment and they are ordered to stop calling immediately. as it is not your phone and can not use it for personal reasons.
sometimes by telling the caller it is costing you funds to be called on a cell phone will sometimes make them stop. if you have used a do not call list, ask the person that is calling you in a friendly voice to pleae provide their identification number, ask if the call is recorded, and let them know that you too are recording the call (this usually stops them from calling back) and ask them if they have an internal do not call list? use the persons name that called you along with their ID # and ask them to place you on their personal do not call list. and remind them they are being recorded for documentation purposes.
they will usually not try to call you again for fear you are recording the converstaion.

store that number as favorite list as "do not pick".when the calls comes in again you know you dont pick it.
or you can go here https://www.donotcall.gov/register/reg.aspx

and you can add your number to do no call list.

1. Go to Apps through Home screen.
2. Tap Messaging.
3. Tap the Menu key.
4. On pop up menu select Settings.
5. Enable Spam Settings under Spam message settings section. When the checkbox next to this option is ticked means the option is enabled.
6. Tap Register number as spam.
7. Tap Add (+) icon to add the number.
8. Enter the required phone number or you can tap Contact icon.
9. You can pick up the required contact you want by searching or from logs or contacts.
10. Tap the required contact.
11. Tap Save button to save the changes.
12. Now you should see the selected number has been added to the register number as spam list.
13. Tap Home button to return to the standby mode.

Source:
http://inside-galaxy.blogspot.com/2013/07/samsung-galaxy-s3-how-to-block-unwanted.html

Take a moment and your phone and call customer service which will be a toll free phone call in most cases.

Hi! Nothing to worry! That u are reporting that u receive ananymous msg! Plz register ur number with 'do not disturb' (DND) thats it! For more details ask ur mobile ?perator .! Cheers!