How do I block selected numbers/ - Panasonic KX-T7730 Corded Phone

To clear all blocked calls from your Panasonic KX-TG7871 phone, follow these steps:

1. Press the "Menu" button on the handset.
2. Use the up and down arrows to scroll to "Settings" and press "Select".
3. Scroll to "Call Block" and press "Select".
4. Scroll to "Block List" and press "Select".
5. Use the up and down arrows to highlight the number you want to unblock.
6. Press the "Erase" button, then press "Yes" to confirm.
7. Repeat steps 5 and 6 for all numbers you want to unblock.
8. When you are finished, press the "Off" button to exit the menu.

Note that if you want to clear all blocked calls, you will need to go through the list and erase each number individually. There is no option to clear the entire block list at once.

Yes, you can block a number on the Doro 5030. Here's how:

1. Go to the phone's main menu and select "Contacts."
2. Scroll down and select "Blocked Numbers."
3. Select "Add Number."
4. Enter the phone number you want to block, then select "Save."
5. The number is now added to your list of blocked numbers, and calls or messages from that number will be automatically blocked.

Note that the Doro 5030 does not have advanced call-blocking features, so you may still receive calls from blocked numbers that use different numbers or withheld numbers. Additionally, the process for blocking a number may vary slightly depending on the specific version of the Doro 5030 that you have, so consult your user manual for more detailed instructions if necessary.

To erase a number from your blocked calls list;

Press  [MENU] [#] [2] [1] [7] 

Press the [?] or the [?] button to select "Block a single number" or “Block range of numbers", press "SELECT"

Press [SELECT]Press the [?] or the [?] button to select the telephone number that you want to erase.

Press [ERASE]

Press the [?] or the [?] button to select [YES]

Press [SELECT]

Press [OFF]



To erase all blocked numbers;

Press  [MENU] [#] [2] [1] [7] 

Press the [?] or the [?] button to select "Block a single number" or “Block range of numbers", press "SELECT"

Press  [MENU]

Press the [?] or the [?] button to select "Erase All", press "SELECT"

Press the [?] or the [?] button to select [YES]

Press [SELECT]

Press the [?] or the [?] button to select [YES]

Press [SELECT]

Press [OFF]

If you subscribe to Caller ID service, your phone can block calls from up to 20 specific phone numbers. This is called the BLOCK LIST. It can also block any call that does not provide a phone number with the Caller ID. This is called CALLS WITHOUT NUMBERS. In either case, the caller will hear a busy signal, and the call will be disconnected.

To add phone numbers to the BLOCK LIST:
When the phone is idle, press MENU/SELECT.
Press VOLUME? until you see Call Block, then press MENU/SELECT.
Block list is displayed. Press MENU/SELECT.
Press VOLUME? until you see Add new entry, then press MENU/SELECT.
Enter the complete phone number of the party you wish to block, then press MENU/SELECT.
Enter the name of the party, then press MENU/SELECT.

To activate the CALLS WITHOUT NUMBERS feature:
When the phone is idle, press MENU/SELECT.
Press VOLUME? until you see Call Block, then press MENU/SELECT.
Press VOLUME? until you see Calls w/o num, then press MENU/SELECT.
Press VOLUME? until you see Block, then press MENU/SELECT. All calls without a phone number will be blocked.

USING THE HANDSET menu

1 CALL BLOCK
2 SELECT "Block a single number" or "Block range of numbers"
3 Select the desired entry.

A After viewing, press OFF to exit.
B To edit a number: EDIT a Edit the number. SAVE OFF
OR.....
C To erase a number: ERASE : "Yes" SELECT a MOFFN

To block calls, open the Phone app, select Call History, tap the number, then select Block Contact or BlockCaller. To block calls, open the Phone app, select Menu > Settings > Call Reject > Reject Calls From and add numbers. To block calls for numbers that have called you, go to the Phone app and open the Log.26 Sep 2016

How to Block a Number on Any Phone ' PCMag.com..

or go to this link for other phones. How to block numbers Google Search

Do the following:

Select MENU
Select INITIAL SETTINGS
Select CALL BLOCK

Find and ERASE the number you want to remove the block from.

Set the junk fax mode
By default, Block Junk Fax mode is turned On . If you do not subscribe to a caller ID service through your phone provider, or do not want to use this feature, you can turn off this setting.
To set the junk fax mode
Press Setup .
Press the right arrow to select Basic Fax Setup , and then press OK .
Press the right arrow to select Junk Fax Blocker Set Up .
Press the right arrow to select Block Junk Fax the press OK .
When prompted, press 1 for Yes or 2 for No .
Add numbers to the junk fax list
There are two ways to add a number to your junk list. You can select numbers from your caller ID history, or you can enter new numbers. The numbers in your junk list will be blocked if Block Junk Fax mode is set to On .
To select a number from the caller ID list
Press Setup .
Press the right arrow to select Basic Fax Setup then press OK .
Press the right arrow to select Add Number to Junk List , and then press the right arrow to select Number and then press OK .
Press the right arrow to scroll through the numbers from which you have received faxes. When the number you want to block appears, press OK to select it.
When the Select Another? prompt displays, do one of the following:
If you want to add another number to the list of junk fax numbers , press 1 to select Yes , and then repeat step 4 for each number you want to block.
If you are done , press 2 to select No .
To manually enter a number to block
Press Setup .
Press the right arrow to select Basic Fax Setup press OK .
Then press the right arrow to select Junk Fax Blocker Set Up and then press OK .
Press the right arrow to select Add Number to Junk List press OK , and then press the right arrow to select Enter Number .
Use the keypad to enter a fax number to block and then press OK . Make sure you enter the fax number as it appears on the display, and not the fax number that appears on the fax header of the received fax, as these numbers can be different.
When the Enter Another? prompt displays, do one of the following:
If you want to add another number to the list of junk fax numbers , press 1 to select Yes , and then repeat step 4 for each number you want to block.
If you are done , press 2 to select No .
Remove numbers from the junk fax list
If you no longer want to block a fax number that number can be removed from the junk fax list.
To remove numbers from the junk fax list
Press Setup .
Press the right arrow to select Basic Fax Setup then press OK , and then press the right arrow again to select Junk Fax Blocker Set Up then press OK .
Press the right arrow to select Remove Number from Junk List .
Press the right arrow to scroll through the blocked numbers. When the number you want to remove displays, press OK to select it.
When the Delete Another? prompt displays, do one of the following:
If you want to remove another number from the list of junk fax numbers , press 1 to select Yes , and then repeat step 4 for each number you want to block.
If you are done , press 2 to select No .
If you subscribe to a caller ID service through your phone provider, you can block specific fax numbers, so the HP Fax does not print faxes received from those numbers in the future. When an incoming fax call is received, the HP Fax compares the number to the list of junk fax numbers you set up to determine if the call should be blocked. If the number matches a number in the blocked fax numbers list, the fax is not printed. (The maximum number of fax numbers you can block varies by model.)
Thank you.

just a guess....
search for " screening or block number " at phone/numbers or message/text it may help..
then the rest is up to you..