>>Luc dau thi sfone cung gay duoc tieng vang lon khi vua ra doi nhung dan ve sau thi to ve thua suc GSM.khuyen mai cua sfone duoc goila khung bo nhat so voi cac doi thu GSM nhung hau het khong thu hut duoc nguoi tieu dung.
>>EVNTELECOM la mang CDMA nhung khong he co khuyen mai nhu vay buoc duong cua EVN con toi tam mu mit hon sfone nhieu.
>>HTmobile thi khuyen mai rat lon neu khach hang hoa mang thi se duoc tang so tien rat lon tren 1 trieu dong goi dien thoai noi mang thi hoan toan mien phi nhung van it khach hang hon sfone.cho den dau nam 2008 thi HTmobile chinh thuc khai tu va chuyen sang cong nghe GSM.