cancel
Showing results for 
Search instead for 
Did you mean: 

Unknown Caller ID for Contacts.

James_A
Level 1: Joiner
  • 4 Posts
  • 1 Topics
  • 0 Solutions
Registered:

All my Incoming calls are Unknown, which includes Contacts stored on phone. 

I have caller ID and Spam protection turned on. 
I have reset Phone on numerous occasions, problem still remains.
This problem arose when I changed my Sim card to a new one. Believing the new sim to be faulty I got a new one, to encounter the same Issue.
My number has not changed since I first contracted with O2.

Any suggestions on how to resolve this matter would be appreciated. 

Message 1 of 11
2,726 Views
1 ACCEPTED SOLUTION

Accepted Solutions

O2Sarah-
  • 689 Posts
  • 0 Topics
  • 25 Solutions
Registered:

Thanks for the tag @MI5 

@James_A I will send you a private message so we can check your account. 

View solution in original post

Message 8 of 11
2,435 Views
10 REPLIES 10

pgn
Level 76: Forum Legend
  • 38594 Posts
  • 241 Topics
  • 1736 Solutions
Registered:

Take your phone and photo id to an O2 store, a replacement SIM has fixed this recently for another customer here. Good luck, don't let the cowboys in store sell you anything either, @James_A 

Message 2 of 11
2,468 Views

James_A
Level 1: Joiner
  • 4 Posts
  • 1 Topics
  • 0 Solutions
Registered:

Thank You for responding PGN, 
My previous sim encountered this problem. This is the second sim card that has encountered the same issue. 
Why would 2 brand new sim cards encounter the same Unknown caller ID issue for all Incoming calls?





Message 3 of 11
2,461 Views

MI5
Level 94: Supreme
  • 149721 Posts
  • 641 Topics
  • 28523 Solutions
Registered:

@James_A 

Try turning off wifi and 4g calling in phone settings to see if it helps?

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
Message 4 of 11
2,459 Views

James_A
Level 1: Joiner
  • 4 Posts
  • 1 Topics
  • 0 Solutions
Registered:

Thank You for the suggestion MI5,
Turned off 4G calling (wi-fi calling was already off), reset phone and still same issue. 

Message 5 of 11
2,455 Views

MI5
Level 94: Supreme
  • 149721 Posts
  • 641 Topics
  • 28523 Solutions
Registered:

@James_A 

I'll ask @O2Sarah- to check in with you in the morning.

May need CLID resetting on your account.

I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
Message 6 of 11
2,449 Views

James_A
Level 1: Joiner
  • 4 Posts
  • 1 Topics
  • 0 Solutions
Registered:

Many Thanks MI5.

Message 7 of 11
2,445 Views

O2Sarah-
  • 689 Posts
  • 0 Topics
  • 25 Solutions
Registered:

Thanks for the tag @MI5 

@James_A I will send you a private message so we can check your account. 

Message 8 of 11
2,436 Views

Woody45
  • 2 Posts
  • 0 Topics
  • 0 Solutions
Registered:

Hi having same issue on sony Experia since getting new O2 simcard after switching from virgin ,tried everything  .

Message 9 of 11
2,337 Views

Bartosz-88
  • 1 Posts
  • 0 Topics
  • 0 Solutions
Registered:

Hi , I got the same issue . All calls come as unknown and it’s affecting my business . Need to get this sorted asap . Please someone help me 

Message 10 of 11
1,775 Views