{"id":2241,"date":"2013-01-03T06:35:47","date_gmt":"2013-01-02T23:35:47","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=2241"},"modified":"2013-01-03T06:35:47","modified_gmt":"2013-01-02T23:35:47","slug":"10-ly-do-hang-d%e1%ba%a7u-khi-chuy%e1%bb%83n-d%e1%bb%95i-sang-voip","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/10-ly-do-hang-d%e1%ba%a7u-khi-chuy%e1%bb%83n-d%e1%bb%95i-sang-voip\/","title":{"rendered":"10 l\u00fd do h\u00e0ng \u0111\u1ea7u khi chuy\u1ec3n \u0111\u1ed5i sang VoIP"},"content":{"rendered":"

Theo t\u00e0i li\u1ec7u t\u01b0 v\u1ea5n kh\u00e1ch h\u00e0ng v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng ph\u00e1t tri\u1ec3n c\u00f4ng ngh\u1ec7 c\u1ee7a nhi\u1ec1u t\u1eadp \u0111o\u00e0n h\u00e0ng \u0111\u1ea7u th\u1ebf gi\u1edbi nh\u01b0\u00a0Aastra(Ericsson)<\/a>, Avaya, Siemens, Cisco, AudioCodes, Alcatel-Lucent,\u2026 \u0111\u1ec1u t\u1eadp trung v\u00e0o ph\u00e1t tri\u1ec3n tr\u00ean n\u1ec1n t\u1ea3ng IP, trong \u0111\u00f3 c\u00e1c d\u1ecbch v\u1ee5, \u1ee9ng d\u1ee5ng tho\u1ea1i VoIP \u0111\u01b0\u1ee3c t\u1eadp trung kh\u00e1 nhi\u1ec1u ngu\u1ed3n l\u1ef1c. C\u00e1c doanh nghi\u1ec7p tr\u00ean to\u00e0n th\u1ebf gi\u1edbi c\u0169ng c\u00f3 xu h\u01b0\u1edbng \u0111\u1ea7u t\u01b0 ho\u1eb7c n\u00e2ng c\u1ea5p h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng truy\u1ec1n th\u1ed1ng c\u1ee7a h\u1ecd sang h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng tho\u1ea1i VoIP, m\u1ed9t m\u1eb7t b\u1eaft k\u1ecbp xu th\u1ebf c\u1ee7a th\u1eddi \u0111\u1ea1i c\u00f4ng ngh\u1ec7, m\u1eb7t kh\u00e1c t\u1eadn d\u1ee5ng nh\u1eefng d\u1ecbch v\u1ee5 ti\u1ec7n \u00edch \u0110a truy\u1ec1n th\u00f4ng ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n tr\u00ean h\u1ea1 t\u1ea7ng IP, t\u1eeb tho\u1ea1i th\u00f4ng th\u01b0\u1eddng cho \u0111\u1ebfn Fax qua IP, h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh, email, chat, truy\u1ec1n h\u00ecnh tr\u1ef1c tuy\u1ebfn,\u2026 gi\u1ea3m chi ph\u00ed \u0111\u1ea7u t\u01b0 n\u00e2ng c\u1ea5p ho\u1eb7c m\u1edf r\u1ed9ng v\u00e0 b\u1eaft k\u1ecbp c\u00f4ng ngh\u1ec7 khi h\u00f2a nh\u1eadp v\u00e0o m\u1ed9t th\u1ebf gi\u1edbi ph\u1eb3ng.<\/p>\n

10 l\u00fd do sau \u0111\u00e2y s\u1ebd gi\u00fap doanh nghi\u1ec7p hi\u1ec3u r\u00f5 h\u01a1n t\u1ea7m quan tr\u1ecdng c\u1ee7a m\u1ee5c \u0111\u00edch n\u00e2ng c\u1ea5p t\u1eeb t\u1ed5ng \u0111\u00e0i PBX th\u00f4ng th\u01b0\u1eddng truy\u1ec1n th\u1ed1ng sang\u00a0t\u1ed5ng \u0111\u00e0i IP-PBX tr\u00ean n\u1ec1n t\u1ea3ng VoIP<\/a><\/p>\n

1. B\u01b0\u1edbc chuy\u1ec3n h\u01b0\u1edbng chi\u1ebfn l\u01b0\u1ee3c c\u1ee7a c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, \u1ee9ng d\u1ee5ng v\u00e0 thi\u1ebft b\u1ecb VoIP<\/strong><\/span><\/h3>\n

\"\"<\/p>\n

Theo d\u1ef1 b\u00e1o c\u1ee7a nhi\u1ec1u chuy\u00ean gia, trong v\u00e0i n\u0103m s\u1eafp t\u1edbi s\u1ebd c\u00f3 kho\u1ea3ng 300 t\u1ef7 \u0111\u00f4la M\u1ef9 kinh ph\u00ed \u0111\u1ea7u t\u01b0 cho ng\u00e0nh c\u00f4ng nghi\u1ec7p vi\u1ec5n th\u00f4ng v\u00e0 \u0111\u01b0\u1ee3c chuy\u1ec3n sang cho c\u00e1c thi\u1ebft b\u1ecb, d\u1ecbch v\u1ee5 m\u1ea1ng h\u1ed7 tr\u1ee3 gi\u1ea3i ph\u00e1p IP Telephony tr\u00ean m\u1ea1ng LAN v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 VoIP tr\u1ecdn g\u00f3i tr\u00ean m\u1ea1ng WAN. Nh\u1edd xu\u1ea5t hi\u1ec7n \u0111\u00fang l\u00fac, c\u00f4ng ngh\u1ec7 m\u1ea1ng h\u1ed7 tr\u1ee3 IP Telephony v\u00e0 VoIP \u0111\u00e3 c\u00f3 \u1ea3nh h\u01b0\u1edfng v\u00e0 t\u00e1c \u0111\u1ed9ng m\u1ea1nh m\u1ebd \u0111\u1ebfn th\u1ecb tr\u01b0\u1eddng cung c\u1ea5p c\u00e1c d\u1ecbch v\u1ee5, \u1ee9ng d\u1ee5ng vi\u1ec5n th\u00f4ng.<\/p>\n

2. \u0110a d\u1ea1ng t\u00ednh n\u0103ng \u2013 Hi\u1ec7u qu\u1ea3 kinh t\u1ebf cao<\/strong><\/h3>\n

\"\"<\/a><\/p>\n

IP Telephony v\u00e0 VoIP \u0111\u00e3 l\u00e0m cho c\u00e1c t\u00ednh n\u0103ng c\u1ee7a \u0111i\u1ec7n tho\u1ea1i truy\u1ec1n th\u1ed1ng tr\u1edf n\u00ean l\u1ed7i th\u1eddi v\u00ec t\u1ea5t c\u1ea3 t\u00ednh n\u0103ng, \u1ee9ng d\u1ee5ng th\u00f4ng tin li\u00ean l\u1ea1c m\u1edbi hi\u1ec7n \u0111\u00e3 c\u00f3 m\u1eb7t tr\u00ean th\u1ebf gi\u1edbi v\u1edbi H\u1ed9i t\u1ee5 Truy\u1ec1n Th\u00f4ng H\u1ee3p Nh\u1ea5t h\u1ed7 tr\u1ee3 n\u1ec1n t\u1ea3ng m\u1ea1ng IP. S\u1ed1 l\u01b0\u1ee3ng v\u00e0 ch\u1ee7ng lo\u1ea1i t\u00ednh n\u0103ng tho\u1ea1i c\u00f3 \u1edf c\u00e1c gi\u1ea3i ph\u00e1p IP Telephony v\u00e0 VoIP hi\u1ec7n nay \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 r\u1ea5t nhi\u1ec1u v\u00e0 h\u1ea5p d\u1eabn. T\u1ea5t c\u1ea3 t\u00ednh n\u0103ng n\u00e0y c\u00f3 s\u1eb5n m\u00e0 kh\u00f4ng \u0111\u00f2i h\u1ecfi th\u00eam b\u1ea5t k\u1ef3 chi ph\u00ed \u0111\u1ea7u t\u01b0 n\u00e0o b\u1edfi v\u00ec ch\u00fang ho\u1ea1t \u0111\u1ed9ng tr\u00ean n\u1ec1n t\u1ea3ng m\u1ea1ng IP v\u00e0 \u0111\u01b0\u1ee3c \u201cv\u1eadn chuy\u1ec3n\u201d tr\u00ean m\u1ea1ng Lan\/Wan\/Internet nh\u01b0 c\u00e1c \u1ee9ng d\u1ee5ng m\u00e1y t\u00ednh th\u00f4ng th\u01b0\u1eddng.<\/p>\n

3. Ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u1ea7u t\u01b0 VoIP<\/strong><\/h3>\n

\"\"<\/a><\/p>\n

Ng\u00e0y nay, h\u1ea7u h\u1ebft c\u00e1c t\u1ed5 ch\u1ee9c, DN \u0111\u1ec1u s\u1eed d\u1ee5ng m\u00f4 h\u00ecnh h\u1ec7 th\u1ed1ng \u0111i\u1ec7n tho\u1ea1i truy\u1ec1n th\u1ed1ng, ho\u1eb7c \u0111\u00e3 chuy\u1ec3n \u0111\u1ed5i to\u00e0n b\u1ed9 hay t\u1eebng ph\u1ea7n sang h\u1ec7 th\u1ed1ng IP Telephony v\u00e0 VoIP (t\u1ed5ng \u0111\u00e0i IP-PBX hay c\u00e1c IP-Centrex) \u0111\u1ec3 h\u1ed7 tr\u1ee3 t\u1ed1t h\u01a1n cho c\u00f4ng vi\u1ec7c kinh doanh. N\u1ebfu doang nghi\u1ec7p \u0111\u00e3 trang b\u1ecb thi\u1ebft b\u1ecb k\u1ef9 thu\u1eadt s\u1ed1 (nh\u01b0 t\u1ed5ng \u0111\u00e0i PBX), th\u00ec c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c \u0111\u00e1ng k\u1ec3 chi ph\u00ed \u0111\u1ea7u t\u01b0 b\u1eb1ng c\u00e1ch t\u00e1i s\u1eed d\u1ee5ng h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb n\u00e0y v\u1edbi h\u1ec7 th\u1ed1ng VoIP m\u1edbi.<\/p>\n

4. D\u1ec5 b\u1ea3o tr\u00ec<\/strong><\/h3>\n

Nh\u1edd c\u00f3 kh\u1ea3 n\u0103ng lo\u1ea1i b\u1ecf t\u1eadn g\u1ed1c nh\u1eefng h\u1ec7 th\u1ed1ng th\u00f4ng tin tr\u00f9ng l\u1eafp v\u00e0 d\u01b0 th\u1eeba, c\u00e1c t\u00e1c v\u1ee5 ch\u00ednh c\u1ee7a vi\u1ec7c c\u00e0i \u0111\u1eb7t v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng IP Telephony v\u00e0 VoIP tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. Nh\u1eefng thao t\u00e1c di chuy\u1ec3n, b\u1ed5 sung v\u00e0 thay \u0111\u1ed5i \u1edf h\u1ec7 th\u1ed1ng \u0111i\u1ec7n tho\u1ea1i truy\u1ec1n th\u1ed1ng tr\u01b0\u1edbc \u0111\u00e2y \u0111\u00f2i h\u1ecfi t\u00e0i nguy\u00ean ph\u1ee9c t\u1ea1p v\u00e0 th\u01b0\u1eddng r\u1ea5t t\u1ed1n k\u00e9m (nh\u01b0 \u0111i d\u00e2y c\u00e1p h\u1ea1 t\u1ea7ng, v\u1ecb tr\u00ed \u0111\u1eb7t m\u00e1y, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng th\u00eam Extension m\u00e1y nh\u00e1nh c\u1ee7a h\u1ec7 th\u1ed1ng, c\u00f4ng su\u1ea5t t\u1ea3i,\u2026), nh\u01b0ng v\u1edbi h\u1ec7 th\u1ed1ng IP Telephony th\u00ec m\u1ea1ng VoIP s\u1ebd t\u1ef1 \u0111\u1ed9ng t\u1ef1 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 t\u01b0\u01a1ng th\u00edch v\u1edbi v\u1ecb tr\u00ed m\u1edbi c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Nh\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 t\u1eeb b\u1ea5t k\u1ef3 m\u00e1y t\u00ednh n\u1ed1i m\u1ea1ng n\u00e0o \u0111\u1ec1u c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh ki\u1ec3m tra, thi\u1ebft l\u1eadp m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng, t\u00e0i kho\u1ea3n v\u00e0 nhi\u1ec1u d\u1eef li\u1ec7u kh\u00e1c cho ng\u01b0\u1eddi d\u00f9ng. V\u1edbi h\u1ec7 th\u1ed1ng vi\u1ec5n th\u00f4ng n\u1ec1n IP, c\u00f4ng vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 b\u1ea3o tr\u00ec m\u1ea1ng tho\u1ea1i tr\u1edf n\u00ean kinh t\u1ebf v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n

5. Linh ho\u1ea1t v\u00e0 c\u01a1 \u0111\u1ed9ng<\/strong><\/h3>\n

\"\"<\/a><\/p>\n

IP Softphone l\u00e0 gi\u1ea3i ph\u00e1p ph\u1ea7n m\u1ec1m g\u1ecdi \u0111i\u1ec7n tho\u1ea1i Internet d\u00e0nh cho c\u00e1c m\u00e1y t\u00ednh s\u1eed d\u1ee5ng h\u1ec7 \u0111i\u1ec1u h\u00e0nh Windows. Ph\u1ea7n m\u1ec1m n\u00e0y cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng truy xu\u1ea5t \u0111\u1ebfn c\u00e1c d\u1ecbch v\u1ee5 vi\u1ec5n th\u00f4ng th\u1eddi gian th\u1ef1c (c\u00f3 ho\u1eb7c kh\u00f4ng thu ph\u00ed) v\u00e0 nh\u1eefng t\u00ednh n\u0103ng c\u1ea3i ti\u1ebfn kh\u00e1c v\u1edbi c\u00e1ch th\u1ee9c s\u1eed d\u1ee5ng th\u1eadt \u0111\u01a1n gi\u1ea3n: ch\u1ec9 c\u1ea7n nh\u1ea5n chu\u1ed9t \u0111\u1ec3 quay s\u1ed1 cu\u1ed9c g\u1ecdi. Trong m\u1ed9t m\u1ea1ng vi\u1ec5n th\u00f4ng n\u1ec1n IP, nh\u00e2n vi\u00ean c\u00f3 th\u1ec3 t\u1ef1 do \u0111i l\u1ea1i b\u1ea5t k\u1ef3 \u0111\u00e2u trong v\u0103n ph\u00f2ng c\u00f4ng ty, n\u1ed1i m\u00e1y t\u00ednh x\u00e1ch tay v\u00e0o m\u1ea1ng, b\u1eaft \u0111\u1ea7u l\u00e0m vi\u1ec7c v\u00e0 nh\u1eadn\/th\u1ef1c hi\u1ec7n c\u00e1c cu\u1ed9c g\u1ecdi. M\u1ea1ng s\u1ebd t\u1ef1 \u0111\u1ed9ng nh\u1eadn d\u1ea1ng ng\u01b0\u1eddi d\u00f9ng v\u00e0 \u00e1p \u0111\u1eb7t c\u00e1c th\u00f4ng tin c\u00e1 nh\u00e2n (profile) c\u1ee7a ng\u01b0\u1eddi d\u00f9ng \u0111\u00f3 c\u00f3 trong c\u01a1 s\u1edf d\u1eef li\u1ec7u ki\u1ec3m so\u00e1t c\u1ee7a h\u1ec7 th\u1ed1ng. Th\u1eadm ch\u00ed, nh\u00e2n vi\u00ean c\u00f2n c\u00f3 th\u1ec3 chuy\u1ec3n ti\u1ebfp c\u00e1c cu\u1ed9c g\u1ecdi \u0111\u1ebfn v\u00e0o b\u1ea5t k\u1ef3 \u0111i\u1ec7n tho\u1ea1i b\u00e0n n\u00e0o \u1edf nh\u1eefng v\u1ecb tr\u00ed t\u1ea1m th\u1eddi (\u0110i\u1ec7n tho\u1ea1i n\u00e0y kh\u00f4ng c\u1ea7n thi\u1ebft ph\u1ea3i h\u1ed7 tr\u1ee3 IP).<\/p>\n

6. Nhi\u1ec1u t\u00ednh n\u0103ng h\u1ea5p d\u1eabn<\/strong><\/h3>\n

\"\"<\/p>\n


<\/p>\n

VoIP v\u1edbi nh\u1eefng \u01b0u \u0111i\u1ec3m nh\u01b0 gi\u1ea3m chi ph\u00ed li\u00ean l\u1ea1c; kh\u1ea3 n\u0103ng t\u00edch h\u1ee3p d\u1ec5 d\u00e0ng c\u00e1c h\u1ec7 th\u1ed1ng d\u1eef li\u1ec7u, tho\u1ea1i v\u00e0 video v\u1ec1 l\u01b0u tr\u1eef v\u00e0 t\u01b0\u01a1ng t\u00e1c tr\u1ef1c tuy\u1ebfn; c\u01a1 s\u1edf d\u1eef li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t t\u1eadp trung; t\u00ednh n\u0103ng tho\u1ea1i di \u0111\u1ed9ng c\u1ea3i ti\u1ebfn gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 chi ph\u00ed\u2026V\u1edbi giao th\u1ee9c SIP (Session Initiation Protocol) cho ph\u00e9p nhi\u1ec1u \u1ee9ng d\u1ee5ng, thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng m\u1edbi d\u1ec5 d\u00e0ng tri\u1ec3n khai gi\u1ea3i ph\u00e1p VoIP tr\u00ean m\u1ea1ng LAN, WAN ho\u1eb7c Internet. H\u1ea7u h\u1ebft c\u00e1c modem v\u00e0 router ADSL hi\u1ec7n nay \u0111\u1ec1u h\u1ed7 tr\u1ee3 VoIP v\u00e0 giao th\u1ee9c SIP, c\u00e1c DN v\u1eeba v\u00e0 nh\u1ecf c\u00f3 th\u1ec3 nhanh ch\u00f3ng tri\u1ec3n khai m\u00f4 h\u00ecnh \u0110T Internet th\u00f4ng qua \u0111\u01b0\u1eddng truy\u1ec1n Internet v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 VoIP mi\u1ec5n ph\u00ed nh\u01b0 iFone, IPTel, DrayTel, MediaRing, Voice777\u2026<\/p>\n

7. Kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd to\u00e0n di\u1ec7n<\/strong><\/h3>\n

\"\"<\/p>\n

C\u00e1c m\u1ea1ng vi\u1ec5n th\u00f4ng n\u1ec1n IP lu\u00f4n cung c\u1ea5p m\u1ed9t n\u1ec1n t\u1ea3ng hi\u1ec7u qu\u1ea3 \u0111\u1ec3 qu\u1ea3n l\u00fd to\u00e0n di\u1ec7n h\u1ec7 th\u1ed1ng. B\u1ea1n c\u00f3 kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t chi ti\u1ebft \u0111\u1ebfn t\u1eebng bit d\u1eef li\u1ec7u \u0111ang \u0111\u01b0\u1ee3c l\u01b0u chuy\u1ec3n tr\u00ean m\u1ea1ng IP Telephony (LAN) hay m\u1ea1ng VoIP (WAN). Trong c\u00e1c m\u1ea1ng chuy\u00ean d\u1ee5ng n\u00e0y (m\u1ea1ng vi\u1ec5n th\u00f4ng n\u1ec1n IP), ch\u1ea5t l\u01b0\u1ee3ng tho\u1ea1i c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u1ebfn 99,99%. Con s\u1ed1 n\u00e0y kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c \u201ctr\u1ee5c tr\u1eb7c kh\u00f4ng bao gi\u1edd x\u1ea3y ra\u201d nh\u01b0ng trong m\u00f4i tr\u01b0\u1eddng m\u1ea1ng h\u1ed9i t\u1ee5 n\u1ec1n IP, kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n s\u1edbm c\u00e1c tri\u1ec7u ch\u1ee9ng v\u00e0 thay \u0111\u1ed5i nh\u1eefng c\u00e0i \u0111\u1eb7t tr\u01b0\u1edbc khi c\u00f3 b\u1ea5t k\u1ef3 tr\u1ee5c tr\u1eb7c n\u00e0o x\u1ea3y ra \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn \u0111\u00e1ng k\u1ec3.<\/p>\n

8. C\u1ed9ng t\u00e1c th\u1eddi gian th\u1ef1c<\/strong><\/h3>\n

VoIP ho\u1ea1t \u0111\u1ed9ng tr\u00ean n\u1ec1n t\u1ea3ng m\u1ea1ng IP v\u00e0 nhi\u1ec1u \u1ee9ng d\u1ee5ng web tr\u01b0\u1edbc \u0111\u00e2y ch\u1ec9 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean Internet th\u00ec hi\u1ec7n gi\u1edd \u0111\u00e3 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ea1ng n\u1ec1n IP. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp c\u00e1c website c\u1ea7n thi\u1ebft ngay t\u1eeb chi\u1ebfc \u0110T \u0111\u1ec3 b\u00e0n n\u1ec1n IP ho\u1eb7c \u0111\u01b0a c\u00e1c \u0111\u01b0\u1eddng link \u0111\u1eb7c bi\u1ec7t l\u00ean trang ch\u1ee7 c\u1ee7a \u0110T \u0111ang s\u1eed d\u1ee5ng. Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 b\u1ed5 sung gi\u1ea3i ph\u00e1p \u0110T k\u00e8m h\u00ecnh \u1ea3nh Video Telephony Solution b\u1eb1ng c\u00e1c ph\u1ea7n m\u1ec1m \u1ee9ng d\u1ee5ng video tr\u00ean n\u1ec1n IP, qua \u0111\u00f3 cho ph\u00e9p m\u1ed9t m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n hay m\u00e1y t\u00ednh x\u00e1ch tay gi\u1ea3 l\u1eadp m\u1ed9t chi\u1ebfc \u0110T IP trong v\u0103n ph\u00f2ng. Ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh v\u00e0 \u00e2m thanh khi s\u1eed d\u1ee5ng tr\u00ean m\u1ea1ng n\u1ed9i b\u1ed9 th\u01b0\u1eddng t\u1ed1t h\u01a1n khi s\u1eed d\u1ee5ng qua k\u1ebft n\u1ed1i Internet do hi\u1ebfm khi g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng tr\u1ec5 ti\u1ebfng hay kh\u1ef1ng h\u00ecnh.<\/p>\n

9. S\u1eed d\u1ee5ng b\u0103ng th\u00f4ng h\u1ee3p l\u00fd<\/strong><\/h3>\n

L\u01b0u l\u01b0\u1ee3ng truy\u1ec1n d\u1eef li\u1ec7u m\u00e1y t\u00ednh (kh\u00f4ng ph\u1ea3i l\u00e0 d\u1eef li\u1ec7u tho\u1ea1i) tr\u00ean h\u1ec7 th\u1ed1ng m\u1ea1ng \u0110T th\u01b0\u1eddng ch\u1ec9 chi\u1ebfm kho\u1ea3ng 30% b\u0103ng th\u00f4ng c\u1ee7a to\u00e0n h\u1ec7 th\u1ed1ng. \u01afu \u0111i\u1ec3m c\u1ee7a VoIP l\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u00f3ng l\u1ea1i th\u00e0nh g\u00f3i v\u00e0 c\u00e1c g\u00f3i d\u1eef li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c truy\u1ec1n th\u00f4ng qua k\u1ebft n\u1ed1i T-1 tr\u00ean m\u1ed9t ph\u1ea7n nh\u1ecf b\u0103ng th\u00f4ng c\u1ee7a k\u00eanh DSO.<\/p>\n

10. Gi\u1ea3m chi ph\u00ed \u0110T \u0111\u01b0\u1eddng d\u00e0i<\/strong><\/h3>\n

\"\"<\/a><\/p>\n


<\/p>\n

N\u1ebfu m\u1ed9t DN c\u00f3 nhi\u1ec1u v\u0103n ph\u00f2ng c\u00e1ch xa nhau (\u1edf c\u00e1c th\u00e0nh ph\u1ed1, t\u1ec9nh hay qu\u1ed1c gia kh\u00e1c) th\u00ec VoIP s\u1ebd gi\u00fap ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c \u0111\u00e1ng k\u1ec3 chi ph\u00ed g\u1ecdi \u0111i\u1ec7n tho\u1ea1i \u0111\u01b0\u1eddng d\u00e0i gi\u1eefa c\u00e1c v\u0103n ph\u00f2ng n\u00e0y. T\u1ea5t c\u1ea3 nh\u1eefng g\u00ec DN c\u1ea7n l\u00e0m l\u00e0 b\u1ed5 sung th\u00eam gi\u1ea3i ph\u00e1p ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m th\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng m\u1ea1ng m\u00e1y t\u00ednh s\u1eb5n c\u00f3 c\u1ee7a m\u00ecnh. V\u1edbi m\u1ed9t h\u1ec7 th\u1ed1ng VoIP ho\u00e0n ch\u1ec9nh, DN th\u1eadm ch\u00ed c\u00f2n c\u00f3 th\u1ec3 tri\u1ec3n khai gi\u1ea3i ph\u00e1p chuy\u1ec3n ti\u1ebfp cu\u1ed9c g\u1ecdi th\u00f4ng minh, cho ph\u00e9p \u201ch\u1ea1n ch\u1ebf\u201d c\u00e1c cu\u1ed9c g\u1ecdi \u0111\u01b0\u1eddng d\u00e0i tr\u1ef1c ti\u1ebfp t\u1eeb m\u1ed9t khu v\u1ef1c (t\u1ec9nh, th\u00e0nh ph\u1ed1 hay qu\u1ed1c gia) sang m\u1ed9t khu v\u1ef1c kh\u00e1c (c\u1ea3 2 khu v\u1ef1c n\u00e0y ph\u1ea3i c\u00f3 v\u0103n ph\u00f2ng c\u1ee7a DN n\u00e0y) b\u1eb1ng c\u00e1ch chuy\u1ec3n d\u1eef li\u1ec7u tho\u1ea1i th\u00f4ng qua m\u1ea1ng VoIP n\u1ed9i b\u1ed9 r\u1ed3i sau \u0111\u00f3 chuy\u1ec3n ti\u1ebfp sang h\u1ec7 th\u1ed1ng PSTN.<\/p>\n

\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014<\/p>\n

Ngu\u1ed3n t\u1eeb: athlsolutions.com, pcworld.com.vn<\/p>\n","protected":false},"excerpt":{"rendered":"

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