If you already have a landline:
1. Call 111 to subscribe or visit any Qtel shop.
2. Prepare a copy of your ID or Resident Permit to be given to the Qtel Installation team.

If you don't have a landline:
1. Visit any Qtel shop.
2. Bring along your ID or Resident Permit. Take a photocopy just to reduce your waiting time.
3. Fill-out an Application Form. Bring along with you your house's electricity or Qtel Number.

I suggest you apply now since there is an on-going promotion for new ADSL line. Installation charge is free so there is no need to pay any fee upon the submission of your Application Form. It usually takes a week or two for Qtel to give you the service. There is no need to buy any wireless router. Qtel provides its subscriber a new WiFi modem for every new installation. The monthly charges are as follows:

QR200 - 512kbps
QR300 - 1Mbps
QR400 - 2Mbps