Hi @Mansoor Khan Khalil, 

a warm welcome to our English Community.   Thanks for your request. 

In order to activate your caller ID when you call somebody else, I still need some details from you. Therefore, you just have received a private message via @o2_Support from me. Please be so kind to reply there to my request. 

Afterwards, I will activate your caller ID. 

Thanks a lot. 

Loving greetings,

Tobias

Hi @Mansoor Khan Khalil, 

thanks for your information under @o2_Support. 

As you told me that you would like to activate the Caller ID for your landline-number, please follow the following instructions: 

• Please go to www.o2online.de
• Then go to “Mein o2”and log-in
• then go to: Tarif & Optionen / Vertrag verwalten / Festnetzeinstellungen
• at “Festnetzeinstellungen” click the button “Weiter”
• you will then come to the point “Temporäre Rufnummernunterdrückung”: please click on the word “hier”
• you will then come to the point “Rufnummernübermittlung”: there you click on the point “Rufnummernübermittlung aktivieren” (activate Caller-ID)

I hope that you manage to activate the Caller-ID with this instruction. 

If you need any further support, just let me know. 

Loving greetings,

Tobias

Hi @Mansoor Khan Khalil, 

was the instruction I gave you helpful for you?

If you need any further help, just let me know. 

Loving greetings,

Tobias