International Roaming is another big initiative from Telenor Mobile Network for their customers alongwith other variety of calling packages with SMS bundles and Internet Offers for every nature of customer for their own choice. The question that how to activate or deactivate the International Roaming in Telenor Network is very easy to do by the following method.Go to Write Message and Write "IR-ON" send it to 345 tor IR Service activation and replace "IR-OFF" to deactivation the service. If you are activating the international roaming for your connection, you will receive the confirmation message as SMS requesting your name and CNIC (Identy Card No.), onece it verified your roaming will be activated by confirmation SMS.