Viber is a multi platform voip application which people have been successfully using to place free calls and communicate with their friends and family. If does not matter if you from India, Pakistan, Nigeria or any other part of world, as long as you are connected to internet you can use Viber. As it allows call to other viber users for free, so you can talk to your friends and family for free (who are also using viber).
The best part about this application being, the contact list is based on mobile number only. So it does not require to add any special contacts. It will show an icon (address book contacts) to distinguish the contacts who are using Viber. Viber already have an application for iPhone, Android, Blackberry mobiles. We have also posted a tutorial about how can you use viber app on your computer.
Though people have been using Viber for quite long now, but few people have been facing difficulties as well. I mean with so many different versions like Android 2.2, 2.3, 3.0 ..., iOS, Blackberry OS : you can expect some issues. So we have compiled a list of question and solutions to these problems.
Q. The person who's receiving the call can not hear me. I am using Viber on iPhone 4 with iOS 5.1..
A. It could be possible that either your's or your friends internet firewall is blocking viber.
First make sure that you are connected to internet properly and your firewall is not blocking Viber.
If it still does not work : try uninstalling and reinstalling Viber when you are connected to different network.
It it still does not work : please make sure the following ports are enabled on your routers or firewalls: TCP: (5242 + 4244), UDP: (5243 + 9785)
Q. I am from UAE and viber does not seem to work on my network.
A. The authorities in the UAE have decided to block Viber in the whole country, and that is why you are experiencing this issue.
Q. I am using two smartphone (one mobile and other tablet). I installed Viber on my mobile and using the same number I registered on my tablet as well. Seems that the viber on my mobile got deactivated. What can I do now.
A. Currently, one number can be assigned with only one device simultaneously. When you try registering to Viber with the same number on a second device, the first device immediately deactivates, and its data (message history, Recents, etc.) is deleted. What you can do, however, is register your second device with a different number: your home number, an old cellphone number, family's or friends.
Q. What is this push notification for Viber in my iPhone. How does this feature help me out.
A. Push notification (for iPhone) allows Viber to notify you of any calls (incoming, missed, etc.) even when Viber is off or in the background. It will also notify you of friends that just joined Viber. When setting Viber up in your iPhone, and you get a message requesting push notifications, tap on ‘OK’ to enable the feature. Please note that Viber will not work if this feature is disabled.
Hope these will help you. If you have any other problem with Viber, then please share with us. We will try to answer your query/find solution to your problem.
The best part about this application being, the contact list is based on mobile number only. So it does not require to add any special contacts. It will show an icon (address book contacts) to distinguish the contacts who are using Viber. Viber already have an application for iPhone, Android, Blackberry mobiles. We have also posted a tutorial about how can you use viber app on your computer.

Though people have been using Viber for quite long now, but few people have been facing difficulties as well. I mean with so many different versions like Android 2.2, 2.3, 3.0 ..., iOS, Blackberry OS : you can expect some issues. So we have compiled a list of question and solutions to these problems.
Q. The person who's receiving the call can not hear me. I am using Viber on iPhone 4 with iOS 5.1..
A. It could be possible that either your's or your friends internet firewall is blocking viber.
First make sure that you are connected to internet properly and your firewall is not blocking Viber.
If it still does not work : try uninstalling and reinstalling Viber when you are connected to different network.
It it still does not work : please make sure the following ports are enabled on your routers or firewalls: TCP: (5242 + 4244), UDP: (5243 + 9785)
Q. I am from UAE and viber does not seem to work on my network.
A. The authorities in the UAE have decided to block Viber in the whole country, and that is why you are experiencing this issue.
Q. I am using two smartphone (one mobile and other tablet). I installed Viber on my mobile and using the same number I registered on my tablet as well. Seems that the viber on my mobile got deactivated. What can I do now.
A. Currently, one number can be assigned with only one device simultaneously. When you try registering to Viber with the same number on a second device, the first device immediately deactivates, and its data (message history, Recents, etc.) is deleted. What you can do, however, is register your second device with a different number: your home number, an old cellphone number, family's or friends.
Q. What is this push notification for Viber in my iPhone. How does this feature help me out.
A. Push notification (for iPhone) allows Viber to notify you of any calls (incoming, missed, etc.) even when Viber is off or in the background. It will also notify you of friends that just joined Viber. When setting Viber up in your iPhone, and you get a message requesting push notifications, tap on ‘OK’ to enable the feature. Please note that Viber will not work if this feature is disabled.
Hope these will help you. If you have any other problem with Viber, then please share with us. We will try to answer your query/find solution to your problem.
+ comments + 3 comments
I recently got an iPhone 5, and I had Viber Installed on my iPhone 4, after deleting from my old device and installed to my new device I have recieved the code but after entering the code, it says incorrect code,please assist
I have installed viber. Tried to call a person who also has viber, they have phoned me on viber, but I cannot call them, why not.
I got samsung s4 ..when I csll anybody through viber my screen goes off..and I cant do anything about it..cant use loud speaker olso or switch off.what shall I do
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