Connection is there but....

I've made it, from a windows pc I can call in to my linuxserver that uses ISDN but, there's a connection but there's no communication. The type of connection on the windows side is SLIP (when choosing ppp it doesn't do anything anymore) and i've set the isdn encapsulation to rawip (I've also tried

Connection is there but....

I've made it, from a windows pc I can call in to my linuxserver that uses ISDN but, there's a connection but theer's no communication. The type of connection on the windows side is SLIP and i've set the isdn encapsulation to rawip (I've also tried ip, ethernet and syncppp... no result. When I ping