Just go to your service provider near you and tell them you want a sim just for international calls, then they will take off from there. Buy a Dedicated Sim for International Calls So let me tell you three things you can doġ.

This means that it can actually be cheaper to make international calls than to make local calls. The process is more complex, but that is the basic technology. If you have, the switch routes your call through the internet to the destination countryįor international calls, your calls are routed through the internet.If not, you are notified and the call is terminated.It then pulls out your record to see if you have enough balance to complete the call.The switch queries the database containing the tariffs for international calls and obtains the per unit cost for calls to that destination.The switch reads the number to know the actual country.However if the destination number is international number: If you have enough balance, the calls is routed to the recipient through the radio network.If it is a local number, then it checks your record including your balance.the switch examines the destination number.When your call gets to the switch, the following steps is taken to complete the call: In the Switch, there is a number of databases including the database containing information about the local subscribers. The Base station make a connection to a BSC and then to the NSC(called Switch). When you pick up your phone and dial a number, your phone makes a connection to the nearest Base Station (normally called mast). Worst still, the telecommunication companies don’t normally tell you perhaps because they make more money from the conventional way we have been making international calls.īefore I outline these three techniques, let me take some time to tell you how it works. These techniques I would outline in this post is something not known to everyone. I learnt about these when I traveled to Europe and needed to keep in touch with friends and family at home. I would tell you how to make international calls for lower cost than what you already have been doing.

Make international call viber