To activate any of the versions of Microsoft Office by telephone, please follow the instruction below:
Download Official ISO:
To download for example Microsoft Office 2019 Professional Plus go at setup.office.com
 
After installation is done please follow this steps:
 
Start Office program to open the activation wizard.
1.Select: 'I want to activate the software by telephone'.
2.Select your county/region from the dropdown (ie. United States) and call the number provided.
 
3.In the phone call, You will be prompted to enter the Installation ID code provided by/in the installation wizard (note: Step 2 in the wizard).
 
4.You will be given/provided sets of numbers. Enter number sets into the text boxes.
 
5.After you have entered the number sets (provided by telephone activation) into the (text) boxes, hit 'Next' and then 'Finish'.
 
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To avoid having to call the number, you can now complete "telephone" activation using an online website to automate the whole process! 

Please visit https://getcid.info/ and follow this video guide to activate any office products

This will allow you to complete the ms telephone activation without actually having to call the number.

office professional plus 2019 phone activation

Important Note:
If you see a notice that 'telephone activation is no longer supported for your product' you can ignore this warning.

Microsoft confirmed this is an issue, and there is currently a WORKAROUND:

You can find a list of numbers to activate all office products via telephone activation HERE.

 

EVEN BETTER:  To avoid having to call the number, you can now complete "telephone" activation using an online website to automate the whole process! 

Please visit https://getcid.info/ and follow this video guide to activate any office products, as per the video guide here:

 

5: In the phone call, or on https://getcid.info/, You will be prompted to provide the Installation ID, shown on the installation wizard.

TeleAct5_large.png

6: The telephone system or https://getcid.info/ will provide you with a confirmation ID.

Type the sets of numbers provided to you into the text boxes.

teleAct6_c8ec225c-f4c0-4723-8c44-7341853f84a2_large.png

7: After you have entered the Confirmation ID (provided in the telephone call or from https://getcid.info/) into the text boxes, press 'Next' and then 'Finish'.

Congratulations! Activation is now complete.