How to Forward Calls to Another Number on Galaxy S7
If you forward calls to another number on Galaxy S7, depending on the defined condition, either all your incoming calls, when busy, when unanswered ...
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If you install Hangouts on your Android device, it replaces Google Talk. To remove and uninstall Hangouts and bring back GTalk again (Jelly Bean 4.3 users can not use this tip, since Hangouts is the default app on their device) do as follows:
1. Open Google Play
2. Search for Hangouts and open it
3. Tap Uninstall
4. Confirm the warning to uninstall all updates to Hangout as an Android system app
5. GTalk is back :)