There are instances when you want to remove your additional RingCentral fax number from your online account. For instructions, follow the steps below:
Log in to your RingCentral Fax online account.
Click Company Numbers.
Click Additional Number.
Click the bin icon. then click OK to confirm.
You now have successfully deleted your additional fax number from your RingCentral Fax online account.
Additional Fax Number to My RingCentral Fax Online Account