Take a look at the minutes options for roaming below. They each have different validity.

Roaming Voice
GCC CountriesPreferred PartnersValidityPrice
30 Min15 Min 24 HoursAED 20
165 Min30 Min 7 DaysAED 130
Even if you don’t buy extra minutes for roaming, you can still make calls while you roam on a pay as you go basis. Make sure you have enough credit in your wallet.