- Jun 30, 2010
Even with the recent changes to Google Voice this method still works!
With the Galaxy tab already selling over 600,000 devices and being hacked to make phone calls (see Samsung Galaxy Tab hacked to make phone calls for T-Mobile tab and [HOW-TO] Flash your at&t Tab to make calls + 1900+850 WCDMA - UPDATED - xda-developers for att tab), I wanted to share the love to every other tablet owner so here are instructions on how to add phone capabilities to any tablet (with a mic of course) for absolutely FREE (no monthly charges, no minute overages). This will work over wifi, 4g, 3g, edge/2g.
What you will need:
1.Google Voice number- www.google.com/voice
2.Callcentric account- Callcentric IP Freedom rate plan
3.IPkall account- IPKall
4.Express talk VoIP soft phone- VoIP Phone Software - SIP VoIP Softphone for PC, Mac & Pocket PC THIS MUST BE DONE FROM A COMPUTER.
5.Sipdroid, Csipsimple app- both in market or Sipdroid-2.0.1.apk - sipdroid - Create PBX account linked to Google Voice, call option "always ask" - Project Hosting on Google Code / CSipSimple_0.00-15-13-tls.apk - csipsimple - CSipSimple dev build for 0.00-15-13 with TLS - Project Hosting on Google Code
6.A Google Voice call back app- like Voice+ found in the Play Store or gvfree.apk
7.Dialer one app- found in the Play Store or DialerOne.apk
8.Google voice- found in the Play Store or an older version can be downloaded here Google_Voice_0.3.0.apk I recommend the old version
To make and receive calls:
Step 1- Download all the required apps and software.
Step 2- Sign up for Callcentric
Step 3- Sign up for IPkall , for sip number type in your callcentric number, for sip proxy type in in.callcentric.com the rest is self explanatory look at image below for a visual ( just a heads up when adding your ipkall number to Google voice you may get a message saying this number is on other Google voice accounts. This is no big deal just cancel your ipkall account and sign back up until you find a number that Google voice will let you use. So you might have to do this step a few times)
Step 4- install express talk, (THIS IS ONLY FOR COMPUTERS NOT ANDROID DEVICES) when you get to the screen that asks you if you have a sip number click yes and then on the next screen for name type in whatever you want, for server type callcentric.com , for sip number type in your callcentric number , for password type in your callcentric password. The other parts of the installation are pretty simple but if you need extra help there are pictures here ImageShack Album - 5 images.
Step 5- Register your number with Google voice for this use your IPkall number (not your callcentric number) name it ipkall to keep track of it, type in your number and for phone type select mobile deselect receive text to this phone then click save. Google voice will then pop up with a verification window with a two digit number click verify. Google voice will call your number and if you did the first 4 steps right it should ring to express talk on your computer, answer it and when it asks for the two numbers type them in. The nice lady will then tell you your Google voice is activated.
Step 6- Set up sipdroid or csipsimple. Go into settings and set up an account you can name it anything you want, for username use your callcentric number, for password use callcentric account password, for server/ proxy use callcentric.com I personally use csipsimple it just seems more user friendly and seems to work better but thats just my opinion
Step 7- Set up Google Voice free call. For user name use the Google email that your Google voice number is activated with and password use the password for that account. Then for call back number type in your IPkall number and dont forget the 1 in front. Then set it to use Google voice to make all calls (make sure to click apply) .
Step 8- Set up dialer one go into settings- advanced settings- dtmf and change it to 50
Step 9- test it. Use another phone to call your Google voice number, if you did everything right you should receive a call. Then try calling someone if you did it right gv free call will place a call to you, you answer it and then it will call the number you dialed, they will see your Google voice number. Make sure to close down express talk before you test.
To send and receive texts:
Set up the Google voice app, it will walk you through but when it gives you an option to pick numbers pick your IPkall number. If you just want a number to send and receive text messages on your tablet for free get a Google voice number and install the older GV version app it will let you set it up with your Google talk account (the new one wont let you)
Through my test I have found these following issues, these are my experiences they might be different for you but just a heads up. Over wifi sipdroid doesnt have any sound on the end of the number you call. So you will be able to hear them fine but they wont be able to hear you. I fixed this issue on csipsimple by turning stun on but when I turn stun on in sipdroid it wont let my service register. When adding your ipkall number to Google voice you may get a message saying this number is on other Google voice accounts. This is no big deal just cancel your ipkall account and sign back up until you find a number that Google voice will let you use. Sometimes you might have to restart your device to make sure everything works properly. If your ipkall number is inactive for 30 days it will be canceled so make sure to use it.
Why you might want this:
Following these steps will add a single number (Google voice number) for both calls and texts, so no reason for multiple apps or numbers to do the same thing. All of this is completely free so no monthly bills. Also using this will allow you to make and receive calls over wifi, 3g, or edge/2g. So you could even use this on your phone to make free calls and not worry about minutes.
Please please share your thoughts, questions, and findings in the comments here. I will continue updating this and tweaking it to make it smoother and easier to understand.
you can find a video for help here How to make and receive free calls and texts
to see original how to for gizmo5 and sipgate go here http://www.androidtablets.net/forum...abilities-your-tablet-original.html#post16092