The free registering with roaming partners’ networks allows the following:

Activate registration: *998#

Registration status check: *998*9#

Deactivate registration: *998*0#

NOTE! Free registering is available to all O! users before activating the service “Roaming” or “Internet Roaming”.

Registering with roaming partners’ networks is available free of charge and subscription fee.

Free registering with roaming partners’ networks