This article describes how to activate office 2021 by telephone method

1. Run any of the office app eg Word, Excel, PowerPoint, etc

2. Go to Account and start the Activation Wizard
3. Input the key
4. Two options pop-up; select “Activate by Telephone”

5. Installation ID pops up

6. The Installation ID will be used to generate the Confirmation ID
Visit any of the links below to generate your Confirmation ID
getcid.info
pidkey.vip/GenCID.aspx
tikeys.com/pages/get-cid-for-phone-activation

7. Input the confirmation ID into the boxes below the Installation ID batch by batch

8. Then click NEXT

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