{"id":570975,"date":"2026-07-28T09:42:28","date_gmt":"2026-07-28T02:42:28","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=570975"},"modified":"2026-07-28T09:42:28","modified_gmt":"2026-07-28T02:42:28","slug":"ussd-la-gi","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/ussd-la-gi\/","title":{"rendered":"USSD l\u00e0 g\u00ec? C\u00e1ch ho\u1ea1t \u0111\u1ed9ng v\u00e0 m\u00e3 USSD ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam"},"content":{"rendered":"

USSD l\u00e0 g\u00ec?<\/b> USSD (Unstructured Supplementary Service Data) l\u00e0 d\u1ecbch v\u1ee5 d\u1eef li\u1ec7u b\u1ed5 sung kh\u00f4ng c\u1ea5u tr\u00fac tr\u00ean m\u1ea1ng di \u0111\u1ed9ng, cho ph\u00e9p \u0111i\u1ec7n tho\u1ea1i giao ti\u1ebfp tr\u1ef1c ti\u1ebfp v\u1edbi h\u1ec7 th\u1ed1ng c\u1ee7a nh\u00e0 m\u1ea1ng th\u00f4ng qua c\u00e1c m\u00e3 l\u1ec7nh d\u1ea1ng *s\u1ed1# \u0111\u1ec3 th\u1ef1c hi\u1ec7n nh\u1eefng thao t\u00e1c quen thu\u1ed9c nh\u01b0 ki\u1ec3m tra t\u00e0i kho\u1ea3n, tra c\u1ee9u dung l\u01b0\u1ee3ng data hay \u0111\u0103ng k\u00fd g\u00f3i c\u01b0\u1edbc. D\u00f9 b\u1ea1n d\u00f9ng \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh \u0111\u1eaft ti\u1ec1n hay m\u1ed9t chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i ph\u1ed5 th\u00f4ng \u0111\u1eddi c\u0169, g\u1ea7n nh\u01b0 ch\u1eafc ch\u1eafn b\u1ea1n \u0111\u00e3 t\u1eebng b\u1ea5m m\u1ed9t m\u00e3 USSD m\u00e0 kh\u00f4ng h\u1ec1 \u0111\u1ec3 \u00fd. Trong b\u00e0i vi\u1ebft n\u00e0y, Ho\u00e0ng H\u00e0 Mobile s\u1ebd c\u00f9ng b\u1ea1n t\u00ecm hi\u1ec3u USSD l\u00e0 g\u00ec, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng, \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m, c\u00e1c m\u00e3 USSD ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam v\u00e0 nh\u1eefng l\u01b0u \u00fd b\u1ea3o m\u1eadt quan tr\u1ecdng.<\/p>\n

USSD l\u00e0 g\u00ec?<\/b><\/h2>\n

USSD l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a c\u1ee5m t\u1eeb ti\u1ebfng Anh Unstructured Supplementary Service Data<\/b>, t\u1ea1m d\u1ecbch l\u00e0 “d\u1eef li\u1ec7u d\u1ecbch v\u1ee5 b\u1ed5 sung kh\u00f4ng c\u1ea5u tr\u00fac”. \u0110\u00e2y l\u00e0 m\u1ed9t giao th\u1ee9c t\u00edn hi\u1ec7u trong m\u1ea1ng di \u0111\u1ed9ng GSM, d\u00f9ng \u0111\u1ec3 truy\u1ec1n c\u00e1c \u0111o\u1ea1n d\u1eef li\u1ec7u ng\u1eafn gi\u1eefa \u0111i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n v\u00e0 m\u00e1y ch\u1ee7 c\u1ee7a nh\u00e0 m\u1ea1ng theo th\u1eddi gian th\u1ef1c.<\/p>\n

V\u1ec1 m\u1eb7t s\u1eed d\u1ee5ng, USSD ch\u00ednh l\u00e0 nh\u1eefng chu\u1ed7i k\u00fd t\u1ef1 b\u1eaft \u0111\u1ea7u b\u1eb1ng d\u1ea5u *<\/b> v\u00e0 k\u1ebft th\u00fac b\u1eb1ng d\u1ea5u #<\/b>, v\u00ed d\u1ee5 nh\u01b0 *101#<\/b>. B\u1ea1n ch\u1ec9 c\u1ea7n nh\u1eadp m\u00e3 tr\u00ean b\u00e0n ph\u00edm \u0111i\u1ec7n tho\u1ea1i r\u1ed3i nh\u1ea5n n\u00fat g\u1ecdi, h\u1ec7 th\u1ed1ng s\u1ebd ph\u1ea3n h\u1ed3i ngay l\u1eadp t\u1ee9c b\u1eb1ng m\u1ed9t th\u00f4ng b\u00e1o ho\u1eb7c m\u1ed9t menu l\u1ef1a ch\u1ecdn hi\u1ec3n th\u1ecb tr\u1ef1c ti\u1ebfp tr\u00ean m\u00e0n h\u00ecnh. V\u00ec th\u1ebf USSD \u0111\u00f4i khi c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi vui l\u00e0 “m\u00e3 nhanh” (quick code) ho\u1eb7c “m\u00e3 b\u00ed m\u1eadt” tr\u00ean \u0111i\u1ec7n tho\u1ea1i.<\/p>\n

\u0110i\u1ec3m \u0111\u00e1ng ch\u00fa \u00fd l\u00e0 USSD ho\u1ea1t \u0111\u1ed9ng ho\u00e0n to\u00e0n qua s\u00f3ng di \u0111\u1ed9ng (2G\/3G\/4G \u1edf l\u1edbp t\u00edn hi\u1ec7u), kh\u00f4ng c\u1ea7n k\u1ebft n\u1ed1i Internet<\/b>, kh\u00f4ng t\u1ed1n dung l\u01b0\u1ee3ng data v\u00e0 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o \u1ee9ng d\u1ee5ng n\u00e0o. \u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao c\u00f4ng ngh\u1ec7 n\u00e0y v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i d\u00f9 \u0111\u00e3 ra \u0111\u1eddi t\u1eeb r\u1ea5t l\u00e2u.<\/p>\n

USSD ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h2>\n

USSD ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean c\u01a1 ch\u1ebf trao \u0111\u1ed5i tr\u1ef1c ti\u1ebfp v\u00e0 theo th\u1eddi gian th\u1ef1c (real-time) gi\u1eefa \u0111i\u1ec7n tho\u1ea1i v\u00e0 h\u1ec7 th\u1ed1ng c\u1ee7a nh\u00e0 m\u1ea1ng. Kh\u00e1c v\u1edbi vi\u1ec7c g\u1eedi tin nh\u1eafn hay truy c\u1eadp web, m\u1ed9t m\u00e3 USSD s\u1ebd t\u1ea1o ra m\u1ed9t phi\u00ean l\u00e0m vi\u1ec7c (session)<\/b> \u0111\u01b0\u1ee3c duy tr\u00ec li\u00ean t\u1ee5c cho \u0111\u1ebfn khi b\u1ea1n ho\u00e0n t\u1ea5t thao t\u00e1c ho\u1eb7c tho\u00e1t ra. Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng di\u1ec5n ra qua c\u00e1c b\u01b0\u1edbc sau:<\/p>\n

    \n
  • B\u1ea1n nh\u1eadp m\u00e3 USSD (v\u00ed d\u1ee5 *101#) tr\u00ean b\u00e0n ph\u00edm \u0111i\u1ec7n tho\u1ea1i v\u00e0 nh\u1ea5n n\u00fat g\u1ecdi \u0111\u1ec3 g\u1eedi y\u00eau c\u1ea7u.<\/li>\n
  • M\u00e3 l\u1ec7nh \u0111\u01b0\u1ee3c truy\u1ec1n qua tr\u1ea1m ph\u00e1t s\u00f3ng \u0111\u1ebfn h\u1ec7 th\u1ed1ng c\u1ee7a nh\u00e0 m\u1ea1ng, n\u01a1i ti\u1ebfp nh\u1eadn v\u00e0 x\u00e1c \u0111\u1ecbnh d\u1ecbch v\u1ee5 t\u01b0\u01a1ng \u1ee9ng v\u1edbi y\u00eau c\u1ea7u.<\/li>\n
  • H\u1ec7 th\u1ed1ng x\u1eed l\u00fd th\u00f4ng tin v\u00e0 g\u1eedi ph\u1ea3n h\u1ed3i, c\u00f3 th\u1ec3 l\u00e0 th\u00f4ng tin t\u00e0i kho\u1ea3n, danh s\u00e1ch g\u00f3i c\u01b0\u1edbc ho\u1eb7c m\u1ed9t menu \u0111\u1ec3 b\u1ea1n ch\u1ecdn ti\u1ebfp.<\/li>\n
  • N\u1ebfu l\u00e0 menu nhi\u1ec1u c\u1ea5p, b\u1ea1n nh\u1eadp s\u1ed1 t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 \u0111i s\u00e2u v\u00e0o t\u1eebng m\u1ee5c. Phi\u00ean USSD \u0111\u01b0\u1ee3c gi\u1eef nguy\u00ean trong su\u1ed1t qu\u00e1 tr\u00ecnh n\u00e0y.<\/li>\n
  • Phi\u00ean k\u1ebft th\u00fac khi b\u1ea1n ho\u00e0n t\u1ea5t thao t\u00e1c, ch\u1ecdn tho\u00e1t ho\u1eb7c khi h\u1ec7 th\u1ed1ng \u0111\u00f3ng session sau m\u1ed9t kho\u1ea3ng th\u1eddi gian kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/li>\n<\/ul>\n

    Ch\u00ednh v\u00ec duy tr\u00ec m\u1ed9t phi\u00ean k\u1ebft n\u1ed1i li\u00ean t\u1ee5c, USSD cho ph\u00e9p t\u01b0\u01a1ng t\u00e1c qua l\u1ea1i nhi\u1ec1u l\u1ea7n trong c\u00f9ng m\u1ed9t l\u1ea7n b\u1ea5m m\u00e3, \u0111i\u1ec1u m\u00e0 m\u1ed9t tin nh\u1eafn SMS \u0111\u01a1n l\u1ebb kh\u00f4ng l\u00e0m \u0111\u01b0\u1ee3c.<\/p>\n

    \"ussd-la-gi-1\"<\/p>\n

    \u01afu \u0111i\u1ec3m v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a USSD<\/b><\/h2>\n

    L\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 l\u00e2u \u0111\u1eddi nh\u01b0ng USSD v\u1eabn t\u1ed3n t\u1ea1i b\u1ec1n b\u1ec9 nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m r\u1ea5t ri\u00eang, d\u00f9 b\u00ean c\u1ea1nh \u0111\u00f3 c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf m\u00e0 b\u1ea1n n\u00ean bi\u1ebft.<\/p>\n

    \u01afu \u0111i\u1ec3m c\u1ee7a USSD:<\/b><\/p>\n

      \n
    • Ho\u1ea1t \u0111\u1ed9ng tr\u00ean h\u1ea7u h\u1ebft m\u1ecdi lo\u1ea1i \u0111i\u1ec7n tho\u1ea1i, k\u1ec3 c\u1ea3 \u0111i\u1ec7n tho\u1ea1i ph\u1ed5 th\u00f4ng (feature phone) \u0111\u1eddi c\u0169, kh\u00f4ng y\u00eau c\u1ea7u c\u1ea5u h\u00ecnh cao hay h\u1ec7 \u0111i\u1ec1u h\u00e0nh hi\u1ec7n \u0111\u1ea1i.<\/li>\n
    • Kh\u00f4ng c\u1ea7n k\u1ebft n\u1ed1i Internet v\u00e0 kh\u00f4ng t\u1ed1n data, r\u1ea5t h\u1eefu \u00edch khi b\u1ea1n \u1edf khu v\u1ef1c s\u00f3ng y\u1ebfu ho\u1eb7c h\u1ebft dung l\u01b0\u1ee3ng.<\/li>\n
    • Ph\u1ea3n h\u1ed3i nhanh g\u1ea7n nh\u01b0 t\u1ee9c th\u00ec, thao t\u00e1c \u0111\u01a1n gi\u1ea3n ch\u1ec9 v\u1edbi v\u00e0i ph\u00edm b\u1ea5m.<\/li>\n
    • Chi ph\u00ed th\u1ea5p, nhi\u1ec1u m\u00e3 tra c\u1ee9u c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c nh\u00e0 m\u1ea1ng cung c\u1ea5p mi\u1ec5n ph\u00ed.<\/li>\n<\/ul>\n

      Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a USSD:<\/b><\/p>\n

        \n
      • N\u1ed9i dung ph\u1ea3n h\u1ed3i ng\u1eafn, hi\u1ec3n th\u1ecb d\u1ea1ng v\u0103n b\u1ea3n th\u00f4, kh\u00f4ng c\u00f3 h\u00ecnh \u1ea3nh hay giao di\u1ec7n tr\u1ef1c quan nh\u01b0 \u1ee9ng d\u1ee5ng.<\/li>\n
      • Phi\u00ean l\u00e0m vi\u1ec7c s\u1ebd t\u1ef1 \u0111\u00f3ng n\u1ebfu b\u1ea1n thao t\u00e1c qu\u00e1 ch\u1eadm, bu\u1ed9c ph\u1ea3i b\u1ea5m l\u1ea1i t\u1eeb \u0111\u1ea7u.<\/li>\n
      • C\u00e1c m\u00e3 l\u1ec7nh kh\u00f3 nh\u1edb v\u00e0 kh\u00f4ng th\u1ed1ng nh\u1ea5t ho\u00e0n to\u00e0n gi\u1eefa c\u00e1c nh\u00e0 m\u1ea1ng.<\/li>\n
      • Ti\u1ec1m \u1ea9n r\u1ee7i ro b\u1ea3o m\u1eadt n\u1ebfu b\u1ea1n b\u1ea5m nh\u1ea7m nh\u1eefng m\u00e3 l\u1ea1 do k\u1ebb x\u1ea5u ph\u00e1t t\u00e1n.<\/li>\n<\/ul>\n

        Ph\u00e2n bi\u1ec7t USSD v\u00e0 SMS<\/b><\/h2>\n

        Nhi\u1ec1u ng\u01b0\u1eddi hay nh\u1ea7m l\u1eabn USSD v\u1edbi SMS v\u00ec c\u1ea3 hai \u0111\u1ec1u truy\u1ec1n th\u00f4ng tin qua m\u1ea1ng di \u0111\u1ed9ng v\u00e0 \u0111\u1ec1u hi\u1ec3n th\u1ecb d\u1ea1ng ch\u1eef. Tuy nhi\u00ean b\u1ea3n ch\u1ea5t c\u1ee7a ch\u00fang kh\u00e1c nhau kh\u00e1 r\u00f5. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y gi\u00fap b\u1ea1n d\u1ec5 h\u00ecnh dung:<\/p>\n\n\n\n\n\n\n\n\n
        Ti\u00eau ch\u00ed<\/b><\/td>\nUSSD<\/b><\/td>\nSMS<\/b><\/td>\n<\/tr>\n
        C\u00e1ch ho\u1ea1t \u0111\u1ed9ng<\/td>\nPhi\u00ean t\u01b0\u01a1ng t\u00e1c th\u1eddi gian th\u1ef1c (real-time), hai chi\u1ec1u li\u00ean t\u1ee5c<\/td>\nG\u1eedi\/nh\u1eadn t\u1eebng tin nh\u1eafn ri\u00eang l\u1ebb, m\u1ed9t chi\u1ec1u<\/td>\n<\/tr>\n
        L\u01b0u tr\u1eef<\/td>\nKh\u00f4ng l\u01b0u l\u1ea1i n\u1ed9i dung sau khi k\u1ebft th\u00fac phi\u00ean<\/td>\n\u0110\u01b0\u1ee3c l\u01b0u tr\u00ean m\u00e1y ho\u1eb7c h\u1ec7 th\u1ed1ng<\/td>\n<\/tr>\n
        T\u1ed1c \u0111\u1ed9 ph\u1ea3n h\u1ed3i<\/td>\nG\u1ea7n nh\u01b0 t\u1ee9c th\u00ec<\/td>\nC\u00f3 th\u1ec3 c\u00f3 \u0111\u1ed9 tr\u1ec5<\/td>\n<\/tr>\n
        M\u1ee5c \u0111\u00edch ch\u00ednh<\/td>\nTra c\u1ee9u t\u00e0i kho\u1ea3n, \u0111\u0103ng k\u00fd\/qu\u1ea3n l\u00fd d\u1ecbch v\u1ee5, thao t\u00e1c nhanh<\/td>\nLi\u00ean l\u1ea1c, th\u00f4ng b\u00e1o, x\u00e1c th\u1ef1c OTP<\/td>\n<\/tr>\n
        \u0110\u1ecbnh d\u1ea1ng<\/td>\nM\u00e3 d\u1ea1ng *s\u1ed1#<\/td>\nN\u1ed9i dung v\u0103n b\u1ea3n t\u1ef1 do<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        \"ussd-la-gi-2\"<\/p>\n

        C\u00e1c m\u00e3 USSD ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam<\/b><\/h2>\n

        T\u1ea1i Vi\u1ec7t Nam, c\u00e1c nh\u00e0 m\u1ea1ng nh\u01b0 Viettel, MobiFone v\u00e0 VinaPhone \u0111\u1ec1u cung c\u1ea5p nhi\u1ec1u m\u00e3 USSD \u0111\u1ec3 thu\u00ea bao t\u1ef1 tra c\u1ee9u v\u00e0 qu\u1ea3n l\u00fd d\u1ecbch v\u1ee5. M\u1ed9t s\u1ed1 m\u00e3 mang t\u00ednh ch\u1ea5t th\u00f4ng d\u1ee5ng v\u00e0 \u0111\u01b0\u1ee3c d\u00f9ng chung, v\u00ed d\u1ee5 m\u00e3 ki\u1ec3m tra t\u00e0i kho\u1ea3n ch\u00ednh. B\u1ea3ng d\u01b0\u1edbi li\u1ec7t k\u00ea c\u00e1c nh\u00f3m m\u00e3 ph\u1ed5 bi\u1ebfn theo m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng:<\/p>\n\n\n\n\n\n\n\n\n
        M\u1ee5c \u0111\u00edch<\/b><\/td>\nM\u00e3 USSD ph\u1ed5 bi\u1ebfn<\/b><\/td>\n<\/tr>\n
        Ki\u1ec3m tra t\u00e0i kho\u1ea3n g\u1ed1c \/ s\u1ed1 d\u01b0<\/td>\n*101# (d\u00f9ng chung cho nhi\u1ec1u nh\u00e0 m\u1ea1ng tr\u1ea3 tr\u01b0\u1edbc)<\/td>\n<\/tr>\n
        Ki\u1ec3m tra dung l\u01b0\u1ee3ng data c\u00f2n l\u1ea1i<\/td>\nC\u00fa ph\u00e1p *s\u1ed1# do nh\u00e0 m\u1ea1ng c\u00f4ng b\u1ed1 (v\u00ed d\u1ee5 tra qua t\u1ed5ng \u0111\u00e0i c\u1ee7a nh\u00e0 m\u1ea1ng)<\/td>\n<\/tr>\n
        Ki\u1ec3m tra s\u1ed1 thu\u00ea bao c\u1ee7a m\u00ecnh<\/td>\nM\u00e3 ri\u00eang theo t\u1eebng nh\u00e0 m\u1ea1ng<\/td>\n<\/tr>\n
        \u0110\u0103ng k\u00fd \/ h\u1ee7y g\u00f3i c\u01b0\u1edbc<\/td>\nC\u00fa ph\u00e1p *s\u1ed1# t\u01b0\u01a1ng \u1ee9ng c\u1ee7a t\u1eebng g\u00f3i<\/td>\n<\/tr>\n
        N\u1ea1p th\u1ebb c\u00e0o<\/td>\n*100*m\u00e3 th\u1ebb# (ph\u1ed5 bi\u1ebfn v\u1edbi nhi\u1ec1u nh\u00e0 m\u1ea1ng tr\u1ea3 tr\u01b0\u1edbc)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        L\u01b0u \u00fd:<\/b> M\u00e3 USSD c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo th\u1eddi gian v\u00e0 kh\u00e1c nhau gi\u1eefa c\u00e1c nh\u00e0 m\u1ea1ng. \u0110\u1ec3 ch\u1eafc ch\u1eafn, b\u1ea1n n\u00ean tra c\u1ee9u m\u00e3 ch\u00ednh th\u1ee9c t\u1eeb nh\u00e0 m\u1ea1ng \u0111ang s\u1eed d\u1ee5ng (qua website ch\u00ednh th\u1ee9c, t\u1ed5ng \u0111\u00e0i ho\u1eb7c \u1ee9ng d\u1ee5ng c\u1ee7a nh\u00e0 m\u1ea1ng) thay v\u00ec b\u1ea5m theo c\u00e1c m\u00e3 kh\u00f4ng r\u00f5 ngu\u1ed3n g\u1ed1c. Hai m\u00e3 \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i v\u00e0 an to\u00e0n nh\u1ea5t l\u00e0 *101#<\/b> \u0111\u1ec3 ki\u1ec3m tra t\u00e0i kho\u1ea3n v\u00e0 *100*m\u00e3 th\u1ebb#<\/b> \u0111\u1ec3 n\u1ea1p th\u1ebb c\u00e0o.<\/p>\n

        \u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a USSD<\/b><\/h2>\n

        Kh\u00f4ng ch\u1ec9 d\u1eebng \u1edf vi\u1ec7c ki\u1ec3m tra t\u00e0i kho\u1ea3n, USSD c\u00f2n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c nh\u1edd kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u1ea7n Internet:<\/p>\n

          \n
        • Qu\u1ea3n l\u00fd d\u1ecbch v\u1ee5 vi\u1ec5n th\u00f4ng:<\/b> ki\u1ec3m tra t\u00e0i kho\u1ea3n, tra c\u1ee9u data, \u0111\u0103ng k\u00fd ho\u1eb7c h\u1ee7y g\u00f3i c\u01b0\u1edbc, n\u1ea1p th\u1ebb c\u00e0o m\u1ed9t c\u00e1ch nhanh ch\u00f3ng.<\/li>\n
        • Mobile banking:<\/b> \u1edf nhi\u1ec1u n\u01a1i, \u0111\u1eb7c bi\u1ec7t t\u1ea1i c\u00e1c v\u00f9ng ch\u01b0a ph\u1ed5 bi\u1ebfn smartphone, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 ki\u1ec3m tra s\u1ed1 d\u01b0 ho\u1eb7c chuy\u1ec3n ti\u1ec1n qua m\u00e3 USSD do ng\u00e2n h\u00e0ng cung c\u1ea5p.<\/li>\n
        • B\u00ecnh ch\u1ecdn, kh\u1ea3o s\u00e1t, ch\u01b0\u01a1ng tr\u00ecnh khuy\u1ebfn m\u00e3i:<\/b> m\u1ed9t s\u1ed1 d\u1ecbch v\u1ee5 d\u00f9ng USSD \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng tham gia nhanh m\u00e0 kh\u00f4ng c\u1ea7n c\u00e0i \u1ee9ng d\u1ee5ng.<\/li>\n
        • Tra c\u1ee9u th\u00f4ng tin thu\u00ea bao:<\/b> xem s\u1ed1 \u0111i\u1ec7n tho\u1ea1i c\u1ee7a SIM, th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng, c\u00e1c d\u1ecbch v\u1ee5 \u0111ang k\u00edch ho\u1ea1t.<\/li>\n<\/ul>\n

          \"ussd-la-gi-3\"<\/p>\n

          L\u01b0u \u00fd b\u1ea3o m\u1eadt khi s\u1eed d\u1ee5ng m\u00e3 USSD<\/b><\/h2>\n

          B\u00ean c\u1ea1nh s\u1ef1 ti\u1ec7n l\u1ee3i, USSD c\u0169ng c\u00f3 th\u1ec3 b\u1ecb k\u1ebb x\u1ea5u l\u1ee3i d\u1ee5ng. \u0110\u00e3 t\u1eebng c\u00f3 nh\u1eefng m\u00e3 USSD \u0111\u1eb7c bi\u1ec7t (d\u1ea1ng *#…# ho\u1eb7c ch\u1ee9a k\u00fd t\u1ef1 l\u1ea1) c\u00f3 kh\u1ea3 n\u0103ng k\u00edch ho\u1ea1t l\u1ec7nh tr\u00ean m\u00e1y, th\u1eadm ch\u00ed x\u00f3a d\u1eef li\u1ec7u ho\u1eb7c chuy\u1ec3n h\u01b0\u1edbng cu\u1ed9c g\u1ecdi. V\u00ec v\u1eady, b\u1ea1n n\u00ean ghi nh\u1edb v\u00e0i nguy\u00ean t\u1eafc an to\u00e0n sau:<\/p>\n

            \n
          • Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng b\u1ea5m nh\u1eefng m\u00e3 USSD l\u1ea1 \u0111\u01b0\u1ee3c g\u1eedi qua tin nh\u1eafn, m\u1ea1ng x\u00e3 h\u1ed9i ho\u1eb7c t\u1eeb ng\u01b0\u1eddi kh\u00f4ng quen bi\u1ebft.<\/li>\n
          • Ch\u1ec9 s\u1eed d\u1ee5ng c\u00e1c m\u00e3 do nh\u00e0 m\u1ea1ng, ng\u00e2n h\u00e0ng ho\u1eb7c \u0111\u01a1n v\u1ecb ch\u00ednh th\u1ed1ng c\u00f4ng b\u1ed1.<\/li>\n
          • C\u1ea3nh gi\u00e1c v\u1edbi c\u00e1c \u0111\u01b0\u1eddng link d\u1ee5 b\u1ea1n “b\u1ea5m m\u00e3 \u0111\u1ec3 nh\u1eadn qu\u00e0, tr\u00fang th\u01b0\u1edfng” v\u00ec \u0111\u00e2y th\u01b0\u1eddng l\u00e0 chi\u00eau tr\u00f2 l\u1eeba \u0111\u1ea3o.<\/li>\n
          • C\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m \u0111i\u1ec7n tho\u1ea1i th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 v\u00e1 c\u00e1c l\u1ed7 h\u1ed5ng li\u00ean quan \u0111\u1ebfn khai th\u00e1c m\u00e3 USSD.<\/li>\n<\/ul>\n

            C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/b><\/h2>\n

            USSD l\u00e0 g\u00ec?<\/b><\/h3>\n

            USSD (Unstructured Supplementary Service Data) l\u00e0 d\u1ecbch v\u1ee5 d\u1eef li\u1ec7u b\u1ed5 sung kh\u00f4ng c\u1ea5u tr\u00fac tr\u00ean m\u1ea1ng di \u0111\u1ed9ng GSM, cho ph\u00e9p \u0111i\u1ec7n tho\u1ea1i giao ti\u1ebfp tr\u1ef1c ti\u1ebfp v\u1edbi h\u1ec7 th\u1ed1ng nh\u00e0 m\u1ea1ng qua c\u00e1c m\u00e3 d\u1ea1ng *s\u1ed1# theo th\u1eddi gian th\u1ef1c, kh\u00f4ng c\u1ea7n Internet.<\/p>\n

            M\u00e3 USSD c\u00f3 d\u1ea1ng nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h3>\n

            M\u00e3 USSD th\u01b0\u1eddng b\u1eaft \u0111\u1ea7u b\u1eb1ng d\u1ea5u * v\u00e0 k\u1ebft th\u00fac b\u1eb1ng d\u1ea5u #, v\u00ed d\u1ee5 *101#. B\u1ea1n nh\u1eadp m\u00e3 tr\u00ean b\u00e0n ph\u00edm r\u1ed3i nh\u1ea5n n\u00fat g\u1ecdi \u0111\u1ec3 nh\u1eadn ph\u1ea3n h\u1ed3i ngay tr\u00ean m\u00e0n h\u00ecnh.<\/p>\n

            USSD kh\u00e1c SMS \u1edf \u0111i\u1ec3m n\u00e0o?<\/b><\/h3>\n

            USSD l\u00e0 phi\u00ean t\u01b0\u01a1ng t\u00e1c th\u1eddi gian th\u1ef1c, hai chi\u1ec1u v\u00e0 kh\u00f4ng l\u01b0u l\u1ea1i n\u1ed9i dung; c\u00f2n SMS l\u00e0 tin nh\u1eafn ri\u00eang l\u1ebb \u0111\u01b0\u1ee3c l\u01b0u tr\u00ean m\u00e1y ho\u1eb7c h\u1ec7 th\u1ed1ng. USSD ph\u00f9 h\u1ee3p \u0111\u1ec3 tra c\u1ee9u, qu\u1ea3n l\u00fd d\u1ecbch v\u1ee5, c\u00f2n SMS d\u00f9ng \u0111\u1ec3 li\u00ean l\u1ea1c v\u00e0 nh\u1eadn th\u00f4ng b\u00e1o.<\/p>\n

            D\u00f9ng USSD c\u00f3 t\u1ed1n ti\u1ec1n hay t\u1ed1n data kh\u00f4ng?<\/b><\/h3>\n

            USSD ho\u1ea1t \u0111\u1ed9ng qua s\u00f3ng di \u0111\u1ed9ng ch\u1ee9 kh\u00f4ng qua Internet n\u00ean kh\u00f4ng t\u1ed1n dung l\u01b0\u1ee3ng data. Nhi\u1ec1u m\u00e3 tra c\u1ee9u c\u01a1 b\u1ea3n nh\u01b0 ki\u1ec3m tra t\u00e0i kho\u1ea3n \u0111\u01b0\u1ee3c nh\u00e0 m\u1ea1ng cung c\u1ea5p mi\u1ec5n ph\u00ed, c\u00f2n m\u1ed9t s\u1ed1 d\u1ecbch v\u1ee5 \u0111\u0103ng k\u00fd g\u00f3i c\u01b0\u1edbc c\u00f3 th\u1ec3 t\u00ednh ph\u00ed theo g\u00f3i.<\/p>\n

            M\u00e3 ki\u1ec3m tra t\u00e0i kho\u1ea3n ph\u1ed5 bi\u1ebfn l\u00e0 g\u00ec?<\/b><\/h3>\n

            M\u00e3 *101# \u0111\u01b0\u1ee3c d\u00f9ng r\u1ed9ng r\u00e3i \u0111\u1ec3 ki\u1ec3m tra t\u00e0i kho\u1ea3n g\u1ed1c tr\u00ean nhi\u1ec1u nh\u00e0 m\u1ea1ng tr\u1ea3 tr\u01b0\u1edbc t\u1ea1i Vi\u1ec7t Nam. \u0110\u1ec3 n\u1ea1p th\u1ebb c\u00e0o, b\u1ea1n th\u01b0\u1eddng d\u00f9ng c\u00fa ph\u00e1p *100*m\u00e3 th\u1ebb#. V\u1edbi c\u00e1c m\u00e3 kh\u00e1c, b\u1ea1n n\u00ean tra c\u1ee9u t\u1eeb nh\u00e0 m\u1ea1ng \u0111ang d\u00f9ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u00ednh x\u00e1c.<\/p>\n

            B\u1ea5m m\u00e3 USSD l\u1ea1 c\u00f3 nguy hi\u1ec3m kh\u00f4ng?<\/b><\/h3>\n

            C\u00f3. M\u1ed9t s\u1ed1 m\u00e3 USSD \u0111\u1eb7c bi\u1ec7t c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t l\u1ec7nh tr\u00ean m\u00e1y ho\u1eb7c b\u1ecb k\u1ebb x\u1ea5u l\u1ee3i d\u1ee5ng \u0111\u1ec3 l\u1eeba \u0111\u1ea3o. B\u1ea1n ch\u1ec9 n\u00ean b\u1ea5m c\u00e1c m\u00e3 do nh\u00e0 m\u1ea1ng, ng\u00e2n h\u00e0ng ho\u1eb7c \u0111\u01a1n v\u1ecb ch\u00ednh th\u1ed1ng c\u00f4ng b\u1ed1, tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng b\u1ea5m m\u00e3 l\u1ea1 g\u1eedi qua tin nh\u1eafn hay m\u1ea1ng x\u00e3 h\u1ed9i.<\/p>\n

            K\u1ebft lu\u1eadn<\/b><\/h2>\n

            T\u00f3m l\u1ea1i, USSD l\u00e0 d\u1ecbch v\u1ee5 d\u1eef li\u1ec7u b\u1ed5 sung kh\u00f4ng c\u1ea5u tr\u00fac, cho ph\u00e9p \u0111i\u1ec7n tho\u1ea1i giao ti\u1ebfp tr\u1ef1c ti\u1ebfp v\u1edbi nh\u00e0 m\u1ea1ng qua c\u00e1c m\u00e3 *s\u1ed1# theo th\u1eddi gian th\u1ef1c, ti\u1ec7n l\u1ee3i v\u00e0 kh\u00f4ng c\u1ea7n Internet.<\/b> Hi\u1ec3u r\u00f5 USSD gi\u00fap b\u1ea1n tra c\u1ee9u t\u00e0i kho\u1ea3n, qu\u1ea3n l\u00fd g\u00f3i c\u01b0\u1edbc v\u00e0 s\u1eed d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 vi\u1ec5n th\u00f4ng nhanh g\u1ecdn h\u01a1n, \u0111\u1ed3ng th\u1eddi bi\u1ebft c\u00e1ch ph\u00f2ng tr\u00e1nh nh\u1eefng m\u00e3 l\u1ea1 ti\u1ec1m \u1ea9n r\u1ee7i ro. \u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam nhi\u1ec1u ki\u1ebfn th\u1ee9c c\u00f4ng ngh\u1ec7 h\u1eefu \u00edch, m\u1eddi b\u1ea1n tham kh\u1ea3o c\u00e1c b\u00e0i vi\u1ebft c\u00e1ch l\u1ea5y API Key ChatGPT<\/a>, HTML l\u00e0 g\u00ec<\/a> v\u00e0 c\u00e1ch t\u1ea1o t\u00e0i kho\u1ea3n Zalo<\/a> tr\u00ean chuy\u00ean m\u1ee5c tin t\u1ee9c c\u1ee7a Ho\u00e0ng H\u00e0 Mobile.<\/p>\n