Sim Card not included. IMEI is clean on all listings unless otherwise stated. See text above, if it says it is unlocked then Unlocked phones can be activated with any gsm service for calls and text messages, often times to get internet data and picture messages (mms) you have to set up apn settings that are specific to your carrier.  You do not need to set up any settings for original carrier, everything will work out of the box.  To get apn settings for your carrier please contact your carrier or search online. If it says specific carrier then it can only be activated with those carriers. If you have any questions regarding apn settings or question if this phone will work with your carrier please do not hesitate to contact us.  Do not assume that it will work with your carrier unless stated.