I noticed something strange or maybe it's Bahrain
In Dubai when I used to make international calls, the cheapest options were (ascending order) :
My Du fixed line
Du postpaid mobile
Du prepaid mobile
Here, its:
Viva prepaid
Viva postpaid
Fixed lines
Am I missing something? It seems to me that under this business model there is no incentive to customers to choose contractual stuff ie fixed or post paid if all you want to do is make idd calls?