The reject list on B7722 is not working ... I just tried it ... the option to add a number to the reject list is ok but it doesn't work ... I tried it by calling from my other mobile and it is not working at all ... It seems I am going back to samsung and this will be a problem. ...

check settings there is auto reject is on, so do it off and select option clear all than add new number

try this: (A complete guide on how to block/unblock a number)
1. From the home screen, press Menu.
2. Scroll to Settings, then press Select.
3. Scroll to Applications, then press Select.
4. Scroll to Call, then press Select.
5. Scroll to All calls, then press Select.
6. Scroll to Auto reject, then press Select.
7. Press Options.
8. Scroll to Create, then press Select.
9. Press OK.
10. Scroll to the required option (e.g. Contact list), then press Select.
11. Scroll to the required number, then press OK.
12. Press Options.
13. Scroll to Save, then press Select.
14. The number has now been blocked. Click Next to continue.
15. To unblock a number scroll to the required number, then press OK.
16. Press Options.
17. Scroll to Save, then press Select.
18. The number has now been unblocked.

I don't know anything about Blu cellphones, but I can tell you how I do it on my Samsung Galaxy S3: tap on the Phone icon on the Home screen, then tap on the Logs tab. Scroll through the list of phone #s till you find the # you want to add to the reject list. Tap & hold on it. From the menu that pops up, select the 'Add to reject list' option.

Hope this helps.

Goto
Settings-->Call -->All calls-->Auto reject
Click on 'Reject list'
Here just for making them to be receivable calls, uncheck them one by one,, By clicking on each entry and then press Options-->Delete. Hope this will be usefull

1. Turn your phone on and locate the Settings menu. "Settings," scroll to "Call" select "OK" to enter the menu.

2. Scroll down to "Call Reject" and select this option.

3. Select "Call Reject List" on the next menu. Enter the ten-digit number of the person that you wish to block and confirm your selection. That number will now be blocked from you phone.

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Yes, open phone and select menu ( top right hand corner).
Then select the Address Book Icon.
Then select Option 5 (Reject List)
Once you have selected the Reject List, select options which will drop down a new list of options in which option 2 is to add new #'s to your Reject List.

this should work,go into settings,then call settings,then all calls then auto reject and then click on your reject list,i hope this helps.

hi,
try these steps, press your call key, it will give you the call log menu, press options, under options, you will see add to reject list, highlight the add to reject list and select the number you want to block.

or you may try to do these,
press menu, under menu, select settings, under settings, select application setting, under application settings, select call, under call, select all call, under all call settings, select auto reject, under auto reject menu, highlight the reject list, then add the number, highlight search and it will give you the following options, call log and phone book, select from the two and search and add the number you want to block, select activation on and select save.

regards..

Settings> Application Settings> Call> All Calls> Auto Reject> Reject List> Delete

go to - menu-> settings-> application settings->  call->  all calls->  auto reject-> (scroll one down) reject list->
[on the reject list uncheck number you wish to remove from the reject list. ]

-this is the most accurate answer, trust me.