With Locale or Tasker and the GVoice Settings Plug-In you can control automatically which phones in your GV account should ring, based on all the great conditions Tasker or Locale offers, like your Location, SSID or Time. On top of that you will be able edit the settings for Do not disturb, Call Presentation, and Voicemail Greeting - all of that not only for the general setting, but also for each Group individually - if you want.
Locale Plug-in - it will not run without Locale or Tasker.
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Q: How do I use this with Tasker?
A: Do not try to open the plugin directly after install - but instead open Tasker, create a situation, you will find the Plugin in the Plugins section.
Q: Can this work with 2-step verification activated?
A: Yes, simply create an application specific password at your google Account settings.
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This application is not affiliated or endorsed by Google Inc or Google Voice, Inc. It is instead developed by Steelgirder Developments
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4.0 Fixed screen layout
3.1 Added CAPTCHA handling at login time
3.0 Initial release under new package and app name.