Any Python Module to send ring tones from PC to mobile via GSM modem

[guptha]

Hi,Tino
Thanks for your reply,
My PC is connected with cell phone (through data card) as a modem,and
my OS is Ubuntu
I have to send ring tones from my PC to any other cell phone by using
connected cell phone as a modem (Your first case satisfy my need )
I think with pygsm, it is not possible to send MMS,if so what could be
the apt python module to work with .what about python-gammu?
can any one point me a url which gives detail tutorial on this topic

thanks
ganesh