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Anonymous Call Rejection


Hello O2 Team,

Please activate the "Anonymous Call Rejection (ACR)" function for my phone number so that calls without caller ID are automatically blocked.

I want to continue receiving calls with a visible number, even if they are not saved in my contacts.

Thank you in advance!

8 Antworten

Bumer
Legende
  • September 27, 2026

Are you a prepaid or postpaid customer?

 


  • Autor
  • Besucher:in
  • September 27, 2026

Postpaid customer !


o2_Daniela
  • Moderatorin
  • September 28, 2026

Hello ​@abdaal,

I’d like to extend a warm welcome to you here in the O2 Community 😀

It’s great that Bumer has already provided you with a link to the relevant FAQ. I’ve taken a look at this for you and noticed that the activation hadn’t been initiated yet. I’ve gone ahead and activated it for you. You should have already received a text message confirming this.

Please let us know if everything is working as expected. 🙂

Best regards
Daniela

 


 


  • Besucher:in
  • October 21, 2026

Hi, I’ve asked to block no caller id calls before and I was informed that it is activated but I still get no caller id calls. I’d be greatful if the situation can be checked.

 

Thank you in advance. 
 

 

Kind regards,

Dilara


Bumer
Legende
  • October 21, 2026

Where did you ask for that?


  • Besucher:in
  • October 21, 2026

 


Bumer
Legende
  • October 21, 2026

And you continue to receive calls with a hidden number?


o2_Daniela

Hello ​@Dilosimo,

thanks for getting back to us and sharing your feedback. 😊

It’s definitely frustrating that you’re still receiving calls from hidden numbers. I’ve looked into this for you and deactivated and reactivated ACR. You should have received a text message by now.

Could you check again and let me know if it’s working as expected now? 🙂

Best regards
Daniela