winsock Connection Problem via Dial-Up

Please Help Me

I create two simple application one client and other server using WINSOCK Control. It is working well on LAN.
But Now when i tried over Phone line it is not working.

I Have two computers with no networking. I want to connect them using phone line and dial up connection. they want to make connection between our client server program. How it will be. Please Help me giving the detail to make the connection between two computers and my client server program.

One computer using WIN-XP other one Using WIN-98. both have two seperate phone line. WIN XP (Phone Number 222233) and win98 system with Phone Number 454544.
when i dial from 98 system to xp (to phone 222233) a dial up connection is established . But I want to Know how to get connected my client to the server program running on destination system using phone 222233. How I will get the IP Address of that remote computer for my client program to make connection. How ever my server Program shows LocalIP as 127.0.0.1 but when i use this in client it is not making connection. How it is possible to connect.
THanks

Unless you get a static IP from your provider, you'll have to use a dynamic IP service, like this one. 127.0.0.1 is the local address of every computer - it's like "me", it doesn't identify you (the computer) to anyone.