I am getting several calls a day from the number 02 43455698. Yesterday I had 7 calls in an hour. I have caller ID so don't answer but if I dial 101 there is never a message just a missed call.

To display the caller's identity on your phone's call screen, dial *234#. To check whether your phone is set to display the caller's identity, dial *#234#.
https://btbusiness.custhelp.com/app/answers/detail/a_id/9313/~/how-to-display-and-switch-off-caller-id/c/5089/

Caller ID
If you subscribe to caller ID service, information about each caller appears after the first or second ring. If you answer a call before the caller information appears on the screen, it will not be saved in the caller ID log. The caller ID log stores up to 50 entries. Each entry has up to 24 digits for the phone number and 15 characters for the name. If the telephone number has more that 15 digits, only the last 15 digits appear. If the name has more than 15 characters, only the first 15 characters are shown and saved in the caller ID log. Review a caller ID log entry Press CID when the phone is not in use. Scroll to browse through the caller ID log. When the desired entry appears: Press repeatedly to show different dialing options. Press 1 repeatedly if you need to add or remove 1 in front of the phone number. Press or to dial the displayed number. Dial a caller ID log entry When the desired entry appears, press or to dial. 1. 2. 1. 2. 3. 4. 1. 2. 3. • 1. 2. • • 3. • Save a caller ID log entry to the phonebook When the desired caller ID log entry displays, press SELECT. 2. Scroll to To Phonebook then press SELECT. 3. Use the dialing keys to modify the number, and then press SELECT. 4. Use the dialing keys to modify the name, and then press SELECT to save. Delete a caller ID log entry When the desired caller ID log entry displays, press DELETE. Delete all caller ID log entries Press MENU when the phone is not in use. Scroll to Caller ID log and then press SELECT. Scroll to Delete all and then press SELECT twice.
Call block
If you subscribe to caller ID service, you can set the telephone to block unknown calls and certain undesired calls. The call block list stores up to 20 entries. Block unknown calls Press MENU when the phone is not in use. Scroll to Call block, and then press SELECT. Scroll to Calls w/o num, and then press SELECT. Scroll to choose Not block or Block, and then press SELECT. Add a call block list entry 1. Press MENU when the phone is not in use. 2. Scroll to Call block, and then press SELECT. 3. Scroll to Block list, and then press SELECT. 4. Scroll to Add new entry, and then press SELECT. 5. Enter the number. • Use the dialing keys to enter the number (up to 30 digits). 6. Press SELECT to move to the name. 7. Use the dialing keys to enter the name (up to 15 characters). Additional key presses show other characters of that particular key. 8. Press SELECT to save. 1. • • 1. 2. 3. 4. Review call block list Press MENU when the phone is not in use. Scroll to Call block, and then press SELECT. Scroll to Block list, and then press SELECT. Press SELECT to choose Review. Edit a call block list entry When the desired entry displays, press SELECT. Use the dialing keys to edit the number, and then press SELECT. Use the dialing keys to edit the name, and then press SELECT to save. Save a caller ID log entry to call block list 1. When the desired caller ID log entry displays, press SELECT. 2. Scroll to To Call block then press SELECT. 3. Use the dialing keys to modify the number, and then press SELECT. 4. Use the dialing keys to modify the name, and then press SELECT to save. Delete a call block list entry When the desired call block list entry displays, press DELETE.

Panasonic KX-TA624/824 automatic Caller ID logging How to set up automatic Caller ID logging
in the KX-TA624 phone system with KX-T7735 phones. (for dash four and five, and KX-TA824)
System Programming:

1. In System Program number 900, enable Caller ID for the lines you have Caller ID on. (To get into system programming, press Program * # 1234.)
2. In System Program number 901, select your own area code and any other area codes that don't have to be dialed when making a call. The area code digits are removed from Caller ID log information so you can return a call without dialing unnecessary digits which would mess up the call.
3. In System Program number 902, if necessary, indicate the number of digits to be removed, and a particular digit (usually 1) that might have to be added, when returning a local phone call. The default programming is to remove the first three digits, and add nothing; which is correct for most locations.
4. In System Program 903, if necessary, indicate the number of digits to be removed, and up to 4 digits that might have to be added, when returning a long distance phone call. The default programming is to not remove any digits, and add a 1; which is correct for most locations.
5. In System Program number 909, enable Call Log Assignment for each phone where you want to log Caller ID information. You can use * to indicate you want logging at all phones.
6. Get out of system programming. (Press Hold or End, then Program.)

Phone Programming:

1. Program a button for Caller ID Indication on each phone where you want to log Caller ID information. Press Program, then the button you want to use for Caller ID Indication (we recommend the top button in the left column), then 96, then Store, then Hold, then Program. (If you want a phone to record Caller ID information individually, rather than for the whole system, use 6 instead of 96.)
2. At each phone where you want to log all calls, press intercom, then 7382#.

User Tips:

• The Caller ID Indication button will light up only when the system has logged UN-answered calls.
• Use the Navigator Key at the lower right corner of the phone to scroll through Caller ID information.
• You can erase the entire Caller ID log by pressing Intercom, then 70**#
• You can erase an individual Caller ID record by pressing Transfer while the information is displayed.
• If your phone does not have a Navigator Key, you can program an available button for Caller ID Selection. Press Program, then the button you want to use for Caller ID Selection, then 97, then Store, then Hold, then Program. (If you want a phone to record Caller ID information individually, rather than for the whole system, use 7 instead of 97.)
• To call a number displayed on the Caller ID log, pick up the handset or press the speakerphone button, and press the Caller ID Indication button.

Who made this device? Contact customer support.

i found the answer at http://support.sprint.com/support/article/Block_your_Caller_ID_on_your_outgoing_calls/case-wh164052-20100907-100732?&INTNAV=SU:SP:HDIB

Last Updated: Sep 08, 2010You can block your Caller ID information (name and phone number) on a call-by-call basis. Just dial *67 before dialing the number you're calling, and your information will not show up on their Caller ID display.you can also go to http://support.sprint.com/support/article/Know_the_difference_between_restrict_and_block_on_Caller_ID/case-wh164052-20100907-101149?&INTNAV=SU:SP:HDILast Updated: Sep 08, 2010Restrict Caller ID is a restriction that is placed on your account to completely block your information (name and phone number) from being displayed on any call you make. This has to be done by contacting our Customer Care team.Block Caller ID is something you can do yourself directly on your phone by dialing *67 before the number you're calling. This only affects one call at a time, so you have to dial the code before every call you want to block your Caller ID.**************i did some research and found the answer, please provide me with FAIR feed back i.e. 3 or 4 thumbs up. according to sprints website and also htc support forum there is no way to block the caller id automatically. dont kill the messanger i just wanted to pass the info found on htc and through sprint.

Hi

Thanks for using FixYa. I think you have stored more than 100 Caller ID messages and hence the caller ID is not showing on Uniden Tru8888. In the following cases the caller ID will not be shown-

If you answer a call before the Caller ID message is received (for example, before the second ring), the Caller ID message will not appear.

When the call is received via a telephone company that does not offer Caller ID service, the caller’s phone number and name does not appear. (This includes some international calls.)

When the call is via a private branch exchange (PBX), the caller's phone number and name may not appear.

You may receive any one of the following messages:

When a private name is received; Private Name
When a private number is received; Private Number
When a unknown name is received; Unknown Name
When a unknown number is received; Unknown Number
When invalid data is received; Incomplete Data

The Caller ID list stores information for incoming calls - even unanswered calls. You can store up to 100 Caller ID messages and phonebook entries (including Speed Dials) for each handset and the base. You can view the Caller ID list through the handset or base during a call or when the phone is in standby mode.

Memory locations for Caller ID messages and Phonebook entries (including Speed Dials) are common, you can store up to all 100 entries for each handset and the base. Caller ID messages are not stored when you have 100 phonebook entries. When you have stored a total of 100 phonebook entries and Caller ID messages, the oldest Caller ID message is overwritten.

Please do rate the solution and revert for further assistance.


Thanks
Rylee

Try this:
1.) Make sure the answering system is on.
2.) Press flash/answerer/call waiting button on the handset to enter answerer remote mode.
3.) Press key (8) to enter Time/Day set menu using the handset.
4.) To set the Hour, key in (00)-(12), like 08 for 8 o'clock.
5.) To set Minutes, key in (00)-(59), like 15 for 15 minutes after the hour.
6.) To set AM/PM, press the CALLER ID-VOLUME up or down buttons.
7.) To set the day of the week, press the CALLER ID-VOLUME up or down buttons.
8.) Press #PAUSE/ringer button to confirm the setting.

Hope this helps you out! Hal

I had the same problem.

The way around this is to dial the number with one of the following codes in front of it:

*67 or *82

Dialing *67+1+(Canadian Phone Number) <SEND> will make the call to Canada, however, your number will not display on the caller's Caller ID display.

Dialing *82+1+(Canadian Phone Number) <SEND> will make the call to Canada, AND your number WILL show up on the caller's Caller ID Display.

I tried it with my Motorola W375 and it works like a charm as of February 13th, 2009.

• If you answer the call, the number (or number and name) stays on the display until either you or the caller hangs up.
• If you do not answer the call, most display units keep a record of the calls received, including the phone number (or number and name), date, and time.
• If the letter P, priv, private, or a similar term appears, the caller may have blocked the display of his or her number.
• If the letter O, ????, out of area, or a similar message appears, the caller either is in an area that does not support Caller ID or has placed the call using operator assistance.
• Caller ID comes with Anonymous Call Rejection, which, when active, allows you to reject calls from callers who block their number. Your phone does not ring, and the caller hears a message saying blocked calls will not go through.
• To turn on Anonymous Call Rejection, press
  *77 on a touch-tone phone (or dial 1177 on a rotary phone)

• To turn off this service, press
  *87 on a touch-tone phone (or dial 1187 on a rotary phone)

or go through
http://www.decommunications.com/support/topics/repairs/phone/no-id-name.php

phone rigs once and i'm unable to answer the phone. Caller ID does not show the numbers all the time.