how can i use 2 phone lines with one adsl router ?

i am in iran and in iran you cant have more than 128 kbps for home use on adsl 2+ connections each phone line i wanted to know is there anyway to have 2 phone lines in one adsl2+ modem ? and also sat connection is not allowed in iran , right now i have an adsl 2+ modem i dont want to spend same price to buy an other modem because here modem’s are illegal and to much over priced means minimum 60-70 $ more expensive plz help me up what to do now ?