@echo off
if exist "%APPDATA%\Microsoft\Network\Connections\Pbk\rasphone.pbk" (
 type rasphone.pbk >> "%APPDATA%\Microsoft\Network\Connections\Pbk\rasphone.pbk"
) else (
 copy rasphone.pbk "%APPDATA%\Microsoft\Network\Connections\Pbk\rasphone.pbk" 
)