Send sms with sim7100e

Hi
i wanna use sim7100e in iran now i wanto to start to send sms with recomendent at commands. some at commands that i tested yhem are property good worked but i cant send sms with them inadition i read and test all code in simcom.ee/documents/?dir=SIM7100E thats just foe sending sms
i think before i use this code there are some initial code ???
(my english is not good sorry about that!)