Just do the following
1. check for gtk2.0 and qt4
$ sudo apt-get install libgtk2.0-dev
$ sudo apt-get install libqt4-dev
2. Remove 'pulse audio sound server'
Open synaptic package manager and remove pulse audio
$ tar -zxvf gtalx.tar.gz5. Get into the directory....
$ cd gtalx
and then...
$ sudo chmod u+x make
$ ./make
$ sudo ./make install
6. Enjoy.....
Please comment about your installation(whether it was a success or not....)
Take gtalx from Applications > Internet > gtalx
Enter your gmail login information..and click connect...
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After successful login your online gmail buddies will be listed...
Click the "Contact" button to "chat or call" that person..
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Upon clicking the contact button you will be shown a screen like this....
If you need to chat..type your message and click "send"...
If you want to talk..click 'call"....
Enjoy....It worked successfully for me...
Any problem please do comment me