Help on GUI Tools

[Gopi K]

Hi all !

i have decided to make a s/w for handling the Phone calls. i am planning to
use Linux Platform to develop the S/w . Phone Call would be handled Through
MODEM

i have some basic queries :
1) i need to have GUI Interface for the said S/W.Which Tools can i use ??
2) And what kind of Programming Language would be used for the GUI(C/C++)
3) Can some one give me some Web links to start off.


Please Advice.

Thanks
Gopi
Mumbai