Introduction   Communication of Hamrah Sahand Co has been organized with the target of coordinating in the maintenance and executing of Mobile system projects . Also this company has been able to have active role and presence in the project implementation with having internal ,professional and Educated experts and giving necessary educations and training in GSM field for them. Hamrah Sahand Company has takes part with authority with all updated Standards and has done all the projects in equal with worldwide technology such projects as Full Turn Key, first operator and second one as IRANCELL. This company is one of the companies that onetime implementation process is one of its important issues and this distinctive ability of this company has been caused for the great successful in the field of Communication at the country. دعوت به همکاری در ارتباطات همراه سهند Communication of Hamrah Sahand Co has been organized with the target of coordinating in the maintenance and executing of Mobile system projects . Also this company has been able to have active role and presence in the project implementation with having internal ,professional and Educated experts and giving necessary educations and training in GSM field for them. Hamrah Sahand Company has takes part with authority with all updated Standards and has done all the projects in equal with worldwide technology such projects as Full Turn Key, first operator and second one as IRANCELL. This company is one of the companies that onetime implementation process is one of its important issues and this distinctive ability of this company has been caused for the great successful in the field of Communication at the country.