Getting a Dinamic Remote IP

[Romulo Sousa <romulosousa@gmail.com>]

Hi folks,

I would like to get an remote IP. It's about my girlfriend's computer
where I share some directories and install some packages. The problem
is that all the time I need to connect via ssh into her computer I
must call her asking for its IP provided by her ISP throughout
ifconfig output.
What can I do in order to get the IP from her computer all the time
the machine is booted? Is it possible to send a message by email, SMS
or whatever way to do that? Further, her computer is connected by a
ADSL (dinamic) and my computer uses cable modem (dinamic also).

Best regards,

Romulo Sousa