I am going on international travel and planning to take my iphone (locked to At&t) with me. I am expecting some important calls so would like to keep my current number active. Now, when someone from US calls me and if I don't answer and it goes to voicemail, will I be charged for roaming? I will turn off the data, just the phone connection. I can call my voicemail number from a local phone to check voicemails and call back.
I have included AT&T's FAQ's on International Roaming, looks like you would be charged for roaming. What I do when I travel internationally is forward my AT&T number to my Google Voice Number. When ever a call comes in, I get an instant text notification and a transcription along with the actual recorded voice message sent to my email. if you are able to get a Wi-Fi connection you can access your voicemail that way.
A. Voicemail calls are charged as follows:
When your device is on:
Calls that you do not answer that are routed to the AT&T voicemail system will be charged as an international roaming incoming call to your device.
In addition, the foreign carrier's routing of that call to the AT&T voicemail system may generate an outgoing call charge from your device's location to the U.S.
These charges apply even if the caller disconnects from the voicemail system without leaving a message.
If your device is turned off or in flight mode and the wireless network is off:
When someone tries to call you, the call will go directly to your personal voicemail greeting.
Since the network does not try to deliver the call to you in a foreign country, there are no international roaming charges.
When receiving Visual Voicemail messages on your smartphone or Apple® iPhone®:
Visual Voicemail messages received when roaming outside of the U.S. will be charged at international roaming data rates, either at the international pay-per-use data rate or against your smartphone or iPhone international data package.