Skip to main content
Warum O2
Warenkorb
 Service
Lösung

No caller ID after the rufnummernmitnahme

  • May 14, 2025
  • 4 Antworten
  • 28 Aufrufe
L
Besucher:in

Hi there,

I did the “rufnummernmitnahme” and ported my old Vodafone number to a new O2 contract. 

Got SMS as well as E-mail that confirmed the number was successfully ported on 06.05.2025. 

However, when calling others, no caller ID will be showed to others instead of my ported number….. 

Found some questions in the community, solutions (i.e. restart, using another cellphone) were not working. Also checked the settings of my iphone, “show my caller ID” is on. 

Could you please check whether the “caller ID display” is suppressed or not in your background system?

Thanks in advance.

Lösung von teimuris

Hi ​@Lin_1025 and good evening!

First of all, welcome to the O2 Community. Thanks for explaining all the measures you have already tried to solve the problem.

Have you tried entering #31# in your keypad? If not, please try it and then press the call button.

Feel free to tell me what happens next.

Best regards
Timor

4 Antworten

teimuris
Mitgestalter:in
  • teimuris
  • Mitgestalter:in
  • Lösung
  • May 14, 2025

Hi ​@Lin_1025 and good evening!

First of all, welcome to the O2 Community. Thanks for explaining all the measures you have already tried to solve the problem.

Have you tried entering #31# in your keypad? If not, please try it and then press the call button.

Feel free to tell me what happens next.

Best regards
Timor

Es mag ja nett sein, wichtig zu sein, aber wichtiger ist es, nett zu sein.
L
o2_Manga
  • o2_MangaModeratorin
  • May 15, 2025

Hi ​@Lin_1025 

welcome to our community. Nice to meet you here. 🙂

I have checked your data. The call number rejection was activated because of an internal error. I changed the setting, please try again to call someone and wait for a feedback if it worked.

Thanks to teimuris for assistance. 

Greetings

Manga

Konnte dein Anliegen gelöst werden? Dann freut sich der Helfer, wenn du seine Antwort als Lösung markierst.
teimuris
L
Besucher:in
  • Lin_1025
  • Autor
  • Besucher:in
  • May 15, 2025

Hi Timor, hi Manga,

Thanks a lot!

I tried to call #31# with my phone and then it worked… 

Best,

Lin

teimuris
teimuris
Mitgestalter:in
  • teimuris
  • Mitgestalter:in
  • May 15, 2025

​@Lin_1025 Hi Lin,

I’m very happy that it worked out and thank you very much for marking my answer as a solution. 😊

If you ever have another question or problem, don't hesitate to open a new case or question. We’ll be here for you again.

Have a nice evening and all the best,

Timor

Es mag ja nett sein, wichtig zu sein, aber wichtiger ist es, nett zu sein.
Allgemeine Nutzungsbedingungen der O₂ CommunityAccessibility statement
© Telefónica Germany GmbH & Co. OHG Telefónica