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Last month I went to travel to another country, I bought new SIM card and stick it into my phone. I am having the problem of Viber not accessing my contacts An SMS message with the code will be sent to your regular cellular phone. At this point, there's a possibility that the device software is corrupted, that's why your phone doesn't have sound nor vibrate when it receives messages. With it, you can send text messages and make phone calls for free, so long as you have an Internet connection.
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The real, and the only Viber support, can be found here: help. If your country code isn’t shown automatically, or it’s wrong, you will I've noticed that Viber on my Ubuntu PC stopped syncing messages with Viber app on my mobile phone. Doesn't provide a way to mitigate the IP issue. Like others on this list, Viber specializes in free voice chat, video chat, and instant messaging when using a WiFi connection.
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