can dsl used as wirless ,landline not avalable

hi my name is ahmer choudhary.im working in a construction company outside 20 km islamabad city in pakistan .due to unavalibility of landline phone we have to use wirless cdma phones to conenct to the internet . so its speed is very poor and coenction is disconected when stayed idle for some time . i use gprs for net use but still very low speed and high cost . in islamabad &  rawalpindi there are dsl conections avalable but they require landline phones , is there a way that i could connect to that dsl conection by wilrles modem or any thing like that ? i need help on this one . is there two way internet in pakistan by stilaite ? if yes wt dose it cost , thank you
ahmer ch. 0321-5157626