Chat_id and phone help

Hello @ItamarM. Please help me to understand:
is it possible to somehow find out the user's phone number and write it to a table, I cannot find such in the viber documentation

[ItamarM]

Hi @LavrenkovNV.

I am no longer affiliated with Viber. Please reach their support (support@viber.com) for help on this matter.

Best,
Itamar