Quick note on Google Voice / Sprint integration

Yes, Google Voice / Sprint integration is now live, but if you would like to continue to use Google Voice Callback, think twice before integrating your Google Voice number and your Sprint number. Integration will merge your two numbers, and thus you will have nothing to callback to - and Google Voice Callback will no longer work.*

* Calling back to your other numbers (home, work, VOIP, etc.) will be unaffected, of course.

Making free internet-based call using your Android phone

It's not a secret that you can make free calls using your Android phone and Google Voice, even without a SIM card in your phone. This is NOT a step-by-step guide, but instead a general description of how it works. Warning: setting this up is not a trivial process. You will need to fill in all the details for yourself. Google (Yahoo/Bing/your search engine of choice) will be your best friend.

DISCLAIMER: The information provided below comes with no guarentee of any sorts. Absolutely nothing. I do not encourage, endorse, or recommend the actions suggested below. Do them at your own risk, and don't blame me even if your phone stops working, your house burned, you lose your boyfriend/girlfriend, your candidate of choise loses the election, or the doomsday comes.

What you need

Let's first go over what you need:

• Google Voice Callback app
  
• A Google Voice account
  
• Internet connection for setup as well as every time you make a call
  
• A VOIP account that works with the SIP protocol
  
• A real phone number (DID) that can transfer call to your SIP account
  
• A SIP app for Android
  

Google Voice Callback v0.10.1 is out!

A quick update. What's new in v0.10.1?

• Now you can choose from multiple callback numbers when making a call (just select multiple callback numbers in the settings). Let me know if this works well!
  
• minor fixes for those who donated via Paypal (thanks!)
  

Enjoy!

Calendar Quick Add v0.5 is out!

This update for Gingerbread is long in coming, sorry! The main change is the fix for Gingerbread crash, but there are lots of small improvements here and there:

• Recognizes phrases such as "in 72 hours" or "in a week"
  
• Recognizes keywords "noon", "midnight", and "now".
  
• Fully spellt out months such as "September 25" is now recognized in text quick add (previously it was only recognized in voice quick add)
  
• Recognizes year as in e.g. 3/18/2012
  
• If hour is greater than 12, assume it's in 24-hour format regardless of setting.
  
• Show day of week on confirmation screen.
  
• Hopefully fixes ending date before starting date bug and the 12 hour into the next day bug
  
• Detects 12/24-hour format and day-month/month-day format from system settings in first run setup
  

Enjoy!

Google Voice Callback v0.10 is out!

What's new or changed:

• option to auto append area code to outgoing numbers. This will only apply to numbers with exactly 7 digits.
  
• homescreen shortcuts to change callback number
  
• much more powerful Tasker/Locale plugin: check it out! You can now change callback numbers and several other settings from Tasker/Locale. Let me know if you want other settings to be accessible from Tasker/Locale.
  
• an menu item to "test" a number against filter rules - for those of you with somewhat complicated rule setup, you can easily test your wildcards/regexes.
  
• Homescreen shortcut to turn on/off is now also available from the homescreen itself (the usual way, via long presses on an empty space on the homescreen)
  
• A fast scrolling thumbnail is added to the pick number screen when creating new filter rules.
  

Enjoy! And happy belated Valentine's day! :)

Google Voice Callback v0.9 is out!

What's new / changed?

• New filter rule to filter by phone type (mobile, home, etc.)
  
• Filter rules can now be ordered via drag and drop. Rules are checked in the order you specified, and the check will stop once a match is found.
  
• Option to start CSipSimple before callback.
  
• The passwordless login method is refined a bit in the setting page, and the error catching is more streamlined.
  
• Ask one more permission to fix problem with passwordless login for some Android 2.1 phones.
  
• Now uses the Android 2.0 Contact API when applicable, which should solve some phone's problem with no contacts shown when picking rules.
  
• Call log clean up should now also take care of the callback through Android 2.3's SIP stack.
  
• Fixes for Quiet Hour.
  
• User interface tweaks here and there. :)
  

A note to CSipSimple users: for even better compatibility, get the CSipSimple version (from their website) that has the filter feature. Add a filter for your GV number to auto-answer the callback call.

Enjoy!