i think Tajik Telecom will not work as it runs 450 MHZ. same as M.Teko. If your CDMA networks runs on 800/1900 MHZ or CDMA2000 then only you can use LT tribute.
Please give the website links of CDMA operator links or check wether they provide mobile serve on which frequency, So that, some one may guide you including me.
yeah, you're right TajikTelecom runs 450mhz,
but TK MObile is CDMA 2000 1x (evdo) It runs 800mhz.