Cisco2900 ተከታታይ ሲገዙ ጊዜ 2921 ከፍተኛው Midrange መካከል ISRer, ቦይንግ ያሉ ከሌሎች ደንበኞች ጋር gar, ናሳ, Northrop Grumman, በዩናይትድ ስቴትስ በመላ ሆስፒታሎች እና ዩኒቨርሲቲዎች, በካናዳ እና ዓለም.
Xa uthenga Cisco2900 Series 2921 ISRer of Midrange Ubuninzi, gar wena nabanye abathengi ezifana kwendiza, NASA, Northrop Grumman, nezibhedlela kunye neeyunivesithi lonke United States, Canada kunye nehlabathi.