What Call mode should I use?

The Sonetel iPhone app has two call modes: Call back and Call thru.

• Call Back
  Works like this: When you hit the „Call“ button in the app, the app will (via the Internet) ask Sonetel’s systems to make a call out to your mobile phone number.
  When you answer the call from us, we will immediately and automatically start calling the foreign number/contact that you wanted to call – and then bridge the two local calls together
  Call back can be used for making calls from any country worldwide.
• Call thru
  Works like this: When you hit the „Call“ button in the app, the app will (via the Internet) tell Sonetel’s systems what destination number you want to call and what number you are calling from. It will then instruct your iPhone to make a call to the local access number for Sonetel (available in +50 countries).
  When the call from your iPhone reaches our network, we will immediately start calling the number/contact that you wanted to call and then bridge the two local calls together.

The benefits of each mode

• Call back
  • You pay Sonetel for both local calls (the call to your mobile + the call to in the destination country). In case you have a prepaid SIM-card, this means that you can make calls without consuming any credits on the SIM-card.
  • Works worldwide.
• Call thru
  • If you have a mobile plan that allows you to make free local calls within your country, Call thru is better, as you then only need to pay for the local call in the country you are calling to.