{"id":4703,"date":"2025-10-16T11:12:00","date_gmt":"2025-10-16T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/voip-phones-complete-guide\/"},"modified":"2026-06-22T06:18:53","modified_gmt":"2026-06-22T06:18:53","slug":"voip-phones-complete-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/voip-phones-complete-guide","title":{"rendered":"\u0110i\u1ec7n tho\u1ea1i VoIP l\u00e0 g\u00ec v\u00e0 ch\u00fang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o"},"content":{"rendered":"<h2 class=\"wp-block-heading\" >\ud83d\udd39 Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Giao th\u1ee9c Truy\u1ec1n gi\u1ecdng n\u00f3i qua Internet (VoIP)<\/strong> C\u00f4ng ngh\u1ec7 \u0111\u00e3 l\u00e0m thay \u0111\u1ed5i c\u00e1ch th\u1ee9c giao ti\u1ebfp c\u1ee7a con ng\u01b0\u1eddi v\u00e0 doanh nghi\u1ec7p. Thay v\u00ec ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i truy\u1ec1n th\u1ed1ng, <strong>\u0110i\u1ec7n tho\u1ea1i VoIP<\/strong> truy\u1ec1n c\u00e1c cu\u1ed9c g\u1ecdi tho\u1ea1i qua internet b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c m\u1ea1ng IP (Giao th\u1ee9c Internet). \u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n thi\u1ebft y\u1ebfu trong c\u00e1c h\u1ec7 th\u1ed1ng giao ti\u1ebfp doanh nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, t\u1eeb trung t\u00e2m ch\u0103m s\u00f3c kh\u00e1ch h\u00e0ng \u0111\u1ebfn h\u1ec7 th\u1ed1ng \u0111i\u1ec7n tho\u1ea1i v\u0103n ph\u00f2ng v\u00e0 c\u00e1c thi\u1ebft b\u1ecb nh\u00e0 th\u00f4ng minh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch \u0111i\u1ec7n tho\u1ea1i VoIP l\u00e0 g\u00ec, c\u00e1ch \u0111i\u1ec7n tho\u1ea1i VoIP ho\u1ea1t \u0111\u1ed9ng, c\u00e1c c\u00f4ng ngh\u1ec7 c\u1ed1t l\u00f5i v\u00e0 l\u1ee3i \u00edch c\u1ee7a ch\u00fang, c\u0169ng nh\u01b0 c\u00e1ch <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\"><strong>C\u00e1c c\u1ed5ng RJ45 c\u00f3 cu\u1ed9n c\u1ea3m c\u1ee7a LINK-PP<\/strong><\/a> \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u v\u00e0 c\u1ea5p ngu\u1ed3n PoE \u1ed5n \u0111\u1ecbnh trong c\u00e1c h\u1ec7 th\u1ed1ng VoIP.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 \u0110i\u1ec7n tho\u1ea1i VoIP l\u00e0 g\u00ec?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/df2ce21d89bc46b285aa35a08318ab17.webp\" alt=\"What Is a VoIP Phone?\" class=\"wp-image-4700\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/df2ce21d89bc46b285aa35a08318ab17.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/df2ce21d89bc46b285aa35a08318ab17-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/df2ce21d89bc46b285aa35a08318ab17-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/df2ce21d89bc46b285aa35a08318ab17-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/df2ce21d89bc46b285aa35a08318ab17-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>\u0110i\u1ec7n tho\u1ea1i VoIP<\/strong> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb giao ti\u1ebfp cho ph\u00e9p truy\u1ec1n gi\u1ecdng n\u00f3i qua m\u1ea1ng IP. Thi\u1ebft b\u1ecb n\u00e0y chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u00e2m thanh t\u01b0\u01a1ng t\u1ef1 th\u00e0nh c\u00e1c g\u00f3i d\u1eef li\u1ec7u s\u1ed1 di chuy\u1ec3n qua internet ho\u1eb7c c\u00e1c m\u1ea1ng ri\u00eang. T\u00f9y theo c\u1ea5u h\u00ecnh, \u0111i\u1ec7n tho\u1ea1i VoIP c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp th\u00f4ng qua c\u00e1p Ethernet ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng qua Wi-Fi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 hai lo\u1ea1i \u0111i\u1ec7n tho\u1ea1i VoIP ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u0110i\u1ec7n tho\u1ea1i VoIP d\u1ef1a tr\u00ean ph\u1ea7n c\u1ee9ng:<\/strong> C\u00e1c \u0111i\u1ec7n tho\u1ea1i b\u00e0n v\u1eadt l\u00fd tr\u00f4ng gi\u1ed1ng \u0111i\u1ec7n tho\u1ea1i truy\u1ec1n th\u1ed1ng nh\u01b0ng \u0111\u01b0\u1ee3c trang b\u1ecb c\u1ed5ng Ethernet ho\u1eb7c m\u00f4-\u0111un Wi-Fi.<\/p><\/li><li><p><strong>\u0110i\u1ec7n tho\u1ea1i VoIP d\u1ef1a tr\u00ean ph\u1ea7n m\u1ec1m (Softphone):<\/strong> C\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t tr\u00ean PC ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, m\u00f4 ph\u1ecfng giao di\u1ec7n \u0111i\u1ec7n tho\u1ea1i b\u1eb1ng micro v\u00e0 loa.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3 hai lo\u1ea1i \u0111\u1ec1u d\u1ef1a tr\u00ean c\u00f9ng m\u1ed9t n\u1ec1n t\u1ea3ng c\u00f4ng ngh\u1ec7 \u2014 <strong>SIP (Giao th\u1ee9c kh\u1edfi t\u1ea1o phi\u00ean)<\/strong> \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u00edn hi\u1ec7u v\u00e0 <strong>RTP (Giao th\u1ee9c v\u1eadn chuy\u1ec3n th\u1eddi gian th\u1ef1c)<\/strong> \u0111\u1ec3 truy\u1ec1n lu\u1ed3ng ph\u01b0\u01a1ng ti\u1ec7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 \u0110i\u1ec7n tho\u1ea1i VoIP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec7n tho\u1ea1i VoIP d\u1ef1a v\u00e0o m\u1ed9t chu\u1ed7i quy tr\u00ecnh k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u1ec3 h\u1ed7 tr\u1ee3 giao ti\u1ebfp th\u1eddi gian th\u1ef1c:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>S\u1ed1 h\u00f3a gi\u1ecdng n\u00f3i:<\/strong> Chuy\u1ec3n \u0111\u1ed5i \u00e2m thanh t\u01b0\u01a1ng t\u1ef1 th\u00e0nh t\u00edn hi\u1ec7u s\u1ed1.<\/p><\/li><li><p><strong>\u0110\u00f3ng g\u00f3i:<\/strong> Chia d\u1eef li\u1ec7u tho\u1ea1i th\u00e0nh c\u00e1c g\u00f3i nh\u1ecf \u0111\u1ec3 truy\u1ec1n \u0111i.<\/p><\/li><li><p><strong>Truy\u1ec1n qua m\u1ea1ng IP:<\/strong> G\u1eedi c\u00e1c g\u00f3i n\u00e0y qua internet ho\u1eb7c m\u1ea1ng LAN b\u1eb1ng c\u00e1c giao th\u1ee9c chu\u1ea9n nh\u01b0 SIP (Giao th\u1ee9c kh\u1edfi t\u1ea1o phi\u00ean).<\/p><\/li><li><p><strong>Gh\u00e9p l\u1ea1i &amp; ph\u00e1t l\u1ea1i:<\/strong> \u0110i\u1ec7n tho\u1ea1i nh\u1eadn t\u00e1i t\u1ea1o c\u00e1c g\u00f3i v\u00e0 chuy\u1ec3n ch\u00fang tr\u1edf l\u1ea1i th\u00e0nh \u00e2m thanh.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 cung c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n \u0111\u00e1ng tin c\u1eady, \u0111i\u1ec7n tho\u1ea1i VoIP th\u01b0\u1eddng s\u1eed d\u1ee5ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\"><strong>m\u00f4-\u0111un bi\u1ebfn \u00e1p Ethernet<\/strong><\/a> \u2014 c\u00e1c th\u00e0nh ph\u1ea7n n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u, gi\u1ea3m nhi\u1ec5u v\u00e0 h\u1ed7 tr\u1ee3 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-you-need-to-know-about-power-over-ethernet\/\"><strong>c\u00f4ng ngh\u1ec7 Cung c\u1ea5p \u0111i\u1ec7n qua Ethernet (PoE)<\/strong><\/a> nh\u1eb1m \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng VoIP \u1ed5n \u0111\u1ecbnh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c g\u1ecdi cao v\u00e0 kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n, c\u00e1c h\u1ec7 th\u1ed1ng VoIP ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u1ebft n\u1ed1i Ethernet \u1ed5n \u0111\u1ecbnh:<\/strong> S\u1eed d\u1ee5ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/cat5e-vs-cat6-vs-cat7-ethernet-cable\/\">Cat5e ho\u1eb7c Cat6<\/a> c\u00e1p \u0111\u1ec3 duy tr\u00ec b\u0103ng th\u00f4ng nh\u1ea5t qu\u00e1n.<\/p><\/li><li><p><strong>H\u1ec7 th\u1ed1ng SIP ho\u1eb7c IP PBX:<\/strong> X\u1eed l\u00fd \u0111\u1ecbnh tuy\u1ebfn cu\u1ed9c g\u1ecdi, h\u1ed9p th\u01b0 tho\u1ea1i v\u00e0 t\u00ednh n\u0103ng h\u1ed9i ngh\u1ecb.<\/p><\/li><li><p><strong>Ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 (QoS):<\/strong> \u01afu ti\u00ean c\u00e1c g\u00f3i tho\u1ea1i nh\u1eb1m gi\u1ea3m \u0111\u1ed9 tr\u1ec5 v\u00e0 \u0111\u1ed9 bi\u1ebfn thi\u00ean \u0111\u1ed9 tr\u1ec5 (jitter).<\/p><\/li><li><p><strong>Ngu\u1ed3n \u0111i\u1ec7n PoE:<\/strong> Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3af-vs-ieee-802-3at-vs-ieee-802-3bt\/\">IEEE 802.3af\/at\/bt<\/a> \u0111\u1ea3m b\u1ea3o vi\u1ec7c cung c\u1ea5p \u0111i\u1ec7n an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udd39 <\/strong>L\u1ee3i \u00edch c\u1ee7a \u0111i\u1ec7n tho\u1ea1i VoIP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ph\u1ed5 bi\u1ebfn c\u1ee7a c\u00f4ng ngh\u1ec7 VoIP ti\u1ebfp t\u1ee5c gia t\u0103ng, nh\u1edd nh\u1eefng \u01b0u \u0111i\u1ec3m n\u1ed5i b\u1eadt sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed:<\/strong><br\/>VoIP gi\u00fap gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec7n tho\u1ea1i c\u1ed1 \u0111\u1ecbnh t\u1ed1n k\u00e9m. C\u00e1c cu\u1ed9c g\u1ecdi n\u1ed9i b\u1ed9 trong m\u1ea1ng th\u01b0\u1eddng mi\u1ec5n ph\u00ed, trong khi m\u1ee9c c\u01b0\u1edbc qu\u1ed1c t\u1ebf th\u1ea5p h\u01a1n nhi\u1ec1u.<\/p><\/li><li><p><strong>T\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong><br\/>Vi\u1ec7c th\u00eam ho\u1eb7c di chuy\u1ec3n m\u00e1y nh\u00e1nh r\u1ea5t \u0111\u01a1n gi\u1ea3n \u2014 ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u1ea7n c\u1eafm \u0111i\u1ec7n tho\u1ea1i VoIP v\u00e0o b\u1ea5t k\u1ef3 c\u1ed5ng Ethernet n\u00e0o v\u00e0 ngay l\u1eadp t\u1ee9c k\u1ebft n\u1ed1i l\u1ea1i v\u1edbi h\u1ec7 th\u1ed1ng.<\/p><\/li><li><p><strong>Ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh cao:<\/strong><br\/>C\u00e1c codec ti\u00ean ti\u1ebfn v\u00e0 k\u1ebft n\u1ed1i m\u1ea1ng \u1ed5n \u0111\u1ecbnh \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng gi\u1ecdng n\u00f3i r\u00f5 r\u00e0ng \u1edf m\u1ee9c HD.<\/p><\/li><li><p><strong>T\u00edch h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 hi\u1ec7n \u0111\u1ea1i:<\/strong><br\/>C\u00e1c h\u1ec7 th\u1ed1ng VoIP d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u1edbi CRM, h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh v\u00e0 c\u00e1c n\u1ec1n t\u1ea3ng giao ti\u1ebfp th\u1ed1ng nh\u1ea5t, h\u1ed7 tr\u1ee3 l\u00e0m vi\u1ec7c k\u1ebft h\u1ee3p v\u00e0 t\u1eeb xa.<\/p><\/li><li><p><strong>C\u1ea5p ngu\u1ed3n v\u00e0 k\u1ebft n\u1ed1i qua PoE:<\/strong><br\/>V\u1edbi PoE (IEEE 802.3af\/at\/bt), \u0111i\u1ec7n tho\u1ea1i VoIP nh\u1eadn c\u1ea3 d\u1eef li\u1ec7u v\u00e0 ngu\u1ed3n \u0111i\u1ec7n qua m\u1ed9t c\u00e1p Ethernet duy nh\u1ea5t, gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a tri\u1ec3n khai v\u00e0 gi\u1ea3m b\u1edbt s\u1ef1 l\u1ed9n x\u1ed9n.<\/p><\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/06f83fccd94c4f0f8be7edac3b3f3c0a.webp\" alt=\"Benefits of VoIP\" class=\"wp-image-4701\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/06f83fccd94c4f0f8be7edac3b3f3c0a.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/06f83fccd94c4f0f8be7edac3b3f3c0a-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/06f83fccd94c4f0f8be7edac3b3f3c0a-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/06f83fccd94c4f0f8be7edac3b3f3c0a-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/06f83fccd94c4f0f8be7edac3b3f3c0a-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udd39 <\/strong>Vai tr\u00f2 c\u1ee7a c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 trong \u0111i\u1ec7n tho\u1ea1i VoIP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>C\u1ed5ng RJ45<\/strong> l\u00e0 c\u1ed5ng k\u1ebft n\u1ed1i \u0111i\u1ec7n tho\u1ea1i VoIP v\u1edbi m\u1ea1ng c\u1ee5c b\u1ed9 (LAN). C\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 ch\u1ea5t l\u01b0\u1ee3ng cao l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 duy tr\u00ec truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 an to\u00e0n cho PoE.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">LINK-PP<\/a> cung c\u1ea5p <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.rj45-modularjack.com\/supplier-26966-magnetic-rj45-jack\"><strong>B\u1ed9 k\u1ebft n\u1ed1i RJ45 t\u00edch h\u1ee3p<\/strong><\/a>, t\u00edch h\u1ee3p giao di\u1ec7n Ethernet v\u00e0 c\u00e1c bi\u1ebfn \u00e1p c\u00e1ch ly trong m\u1ed9t thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn. C\u00e1c m\u00f4-\u0111un n\u00e0y cung c\u1ea5p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u0103ng c\u01b0\u1eddng t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u:<\/strong> Gi\u1ea3m thi\u1ec3u nhi\u1ec5u xuy\u00ean k\u00eanh (crosstalk) v\u00e0 nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) nh\u1eb1m \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u00e2m thanh r\u00f5 r\u00e0ng.<\/p><\/li><li><p><strong>C\u00e1ch ly \u0111i\u1ec7n:<\/strong> B\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb kh\u1ecfi c\u00e1c \u0111\u1ee3t t\u0103ng \u0111i\u1ec7n \u00e1p v\u00e0 xung \u0111i\u1ec7n.<\/p><\/li><li><p><strong>T\u01b0\u01a1ng th\u00edch PoE:<\/strong> H\u1ed7 tr\u1ee3 c\u00e1c ti\u00eau chu\u1ea9n IEEE 802.3af\/at\/bt, cho ph\u00e9p c\u1ea5p ngu\u1ed3n l\u00ean \u0111\u1ebfn 90 W.<\/p><\/li><li><p><strong>T\u00edch h\u1ee3p nh\u1ecf g\u1ecdn:<\/strong> Gi\u1ea3m di\u1ec7n t\u00edch b\u1ea3ng m\u1ea1ch in (PCB) v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 <strong>C\u00e1c s\u1ea3n ph\u1ea9m v\u00ed d\u1ee5:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/474069.htm\">LPJK6072AONL<\/a>: \u0110\u1ea7u n\u1ed1i RJ45 PoE 10\/100\/1000BASE-T<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/474197.htm\">LPJMP96282AHNL<\/a>: \u0110\u1ea7u n\u1ed1i RJ45 c\u00f3 cu\u1ed9n c\u1ea3m PoE++ (IEEE 802.3bt) cho Ethernet 10G <\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o giao ti\u1ebfp \u1ed5n \u0111\u1ecbnh v\u00e0 kh\u00f4ng c\u00f3 nhi\u1ec5u, <strong>c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 c\u00f3 cu\u1ed9n c\u1ea3m<\/strong> \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong ph\u1ea7n c\u1ee9ng \u0111i\u1ec7n tho\u1ea1i VoIP.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udd39 <\/strong>\u01afu \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng \u0111i\u1ec7n tho\u1ea1i VoIP d\u1ef1a tr\u00ean PoE<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u00edch h\u1ee3p PoE v\u1edbi c\u00f4ng ngh\u1ec7 VoIP mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch v\u1ec1 m\u1eb7t v\u1eadn h\u00e0nh v\u00e0 chi ph\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Tri\u1ec3n khai b\u1eb1ng c\u00e1p \u0111\u01a1n:<\/strong> Cung c\u1ea5p \u0111\u1ed3ng th\u1eddi ngu\u1ed3n \u0111i\u1ec7n v\u00e0 d\u1eef li\u1ec7u qua m\u1ed9t \u0111\u01b0\u1eddng c\u00e1p Ethernet.<\/p><\/li><li><p><strong>Qu\u1ea3n l\u00fd ngu\u1ed3n t\u1eadp trung:<\/strong> \u0110\u01a1n gi\u1ea3n h\u00f3a b\u1ea3o tr\u00ec v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 an to\u00e0n.<\/p><\/li><li><p><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng:<\/strong> D\u1ec5 d\u00e0ng th\u00eam ho\u1eb7c di chuy\u1ec3n thi\u1ebft b\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n \u1ed5 c\u1eafm \u0111i\u1ec7n m\u1edbi.<\/p><\/li><li><p><strong>Hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng:<\/strong> Ph\u00e2n b\u1ed5 ngu\u1ed3n \u0111i\u1ec7n th\u00f4ng minh gi\u00fap gi\u1ea3m l\u00e3ng ph\u00ed v\u00e0 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd c\u00e1c <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.rj45-modularjack.com\/supplier-26970-poe-rj45-connector\">C\u00e1c \u0111\u1ea7u n\u1ed1i RJ45 h\u1ed7 tr\u1ee3 PoE<\/a>, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n tho\u1ea1i IP d\u1ec5 l\u1eafp \u0111\u1eb7t h\u01a1n, ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh li\u00ean t\u1ee5c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udd39 <\/strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ec7 th\u1ed1ng giao ti\u1ebfp v\u0103n ph\u00f2ng doanh nghi\u1ec7p<\/p><\/li><li><p>Trung t\u00e2m ch\u0103m s\u00f3c kh\u00e1ch h\u00e0ng v\u00e0 c\u00e1c n\u1ec1n t\u1ea3ng giao ti\u1ebfp th\u1ed1ng nh\u1ea5t<\/p><\/li><li><p>Kh\u00e1ch s\u1ea1n, b\u1ec7nh vi\u1ec7n v\u00e0 m\u1ea1ng l\u01b0\u1edbi gi\u00e1o d\u1ee5c<\/p><\/li><li><p>M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c t\u1eeb xa v\u00e0 k\u1ebft h\u1ee3p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i t\u00ecnh hu\u1ed1ng tr\u00ean \u0111\u1ec1u h\u01b0\u1edfng l\u1ee3i t\u1eeb \u0111i\u1ec7n tho\u1ea1i VoIP \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n qua PoE nh\u1edd ch\u1ea5t l\u01b0\u1ee3ng gi\u1ecdng n\u00f3i \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p l\u1eafp \u0111\u1eb7t gi\u1ea3m \u0111i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udd39 <\/strong>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p \u2014 T\u1ed5ng quan v\u1ec1 \u0111i\u1ec7n tho\u1ea1i VoIP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e2u h\u1ecfi 1: \u0110i\u1ec7n tho\u1ea1i VoIP c\u00f3 y\u00eau c\u1ea7u <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-you-need-to-know-about-power-over-ethernet\/\"><strong>PoE<\/strong><\/a><strong>?<\/strong><br\/>Kh\u00f4ng nh\u1ea5t thi\u1ebft. Ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng b\u1ed9 \u0111i\u1ec1u h\u1ee3p ngu\u1ed3n b\u00ean ngo\u00e0i, nh\u01b0ng <strong>PoE (IEEE 802.3af\/at\/bt)<\/strong> \u0111\u01b0\u1ee3c \u01b0u ti\u00ean \u0111\u1ec3 l\u1eafp \u0111\u1eb7t g\u1ecdn g\u00e0ng h\u01a1n v\u00e0 qu\u1ea3n l\u00fd t\u1eadp trung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e2u h\u1ecfi 2: Codec n\u00e0o mang l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng tho\u1ea1i t\u1ed1t nh\u1ea5t?<\/strong><br\/><strong>G.711<\/strong> cung c\u1ea5p \u00e2m thanh kh\u00f4ng n\u00e9n ch\u1ea5t l\u01b0\u1ee3ng cao, trong khi \u0111\u00f3 <strong>G.729<\/strong> and <strong>Opus<\/strong> c\u00e2n b\u1eb1ng gi\u1eefa b\u0103ng th\u00f4ng v\u00e0 \u0111\u1ed9 r\u00f5 n\u00e9t t\u00f9y theo \u0111i\u1ec1u ki\u1ec7n m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e2u h\u1ecfi 3: T\u1ea1i sao <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-17492-integrated-rj45-connector.htm\"><strong>b\u1ed9 l\u1ecdc t\u1eeb t\u00ednh RJ45<\/strong><\/a><strong> l\u1ea1i quan tr\u1ecdng trong thi\u1ebft k\u1ebf VoIP?<\/strong><br\/>Ch\u00fang \u0111\u1ea3m b\u1ea3o <strong>c\u00e1ch ly t\u00edn hi\u1ec7u v\u00e0 kh\u1eed nhi\u1ec5u<\/strong>, ng\u0103n ng\u1eeba m\u00e9o ti\u1ebfng v\u00e0 m\u1ea5t \u1ed5n \u0111\u1ecbnh m\u1ea1ng trong su\u1ed1t cu\u1ed9c g\u1ecdi tho\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udd39 <\/strong>K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0111i\u1ec7n tho\u1ea1i VoIP<\/strong> \u0111ang l\u00e0m thay \u0111\u1ed5i c\u00e1ch th\u1ee9c giao ti\u1ebfp doanh nghi\u1ec7p b\u1eb1ng c\u00e1ch t\u00edch h\u1ee3p tho\u1ea1i, d\u1eef li\u1ec7u v\u00e0 ngu\u1ed3n \u0111i\u1ec7n tr\u00ean m\u1ed9t c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng Ethernet th\u1ed1ng nh\u1ea5t. Hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o <strong>vi\u1ec7c cung c\u1ea5p ngu\u1ed3n PoE \u0111\u00e1ng tin c\u1eady v\u00e0 k\u1ebft n\u1ed1i RJ45 b\u1ec1n b\u1ec9<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t to\u00e0n c\u1ea7u c\u00e1c <strong>b\u1ed9 k\u1ebft n\u1ed1i RJ45 t\u00edch h\u1ee3p v\u00e0 gi\u1ea3i ph\u00e1p PoE<\/strong>, <strong>LINK-PP<\/strong> cung c\u1ea5p c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u1ea1t chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng cao, gi\u00fap n\u00e2ng cao \u0111\u1ed9 tin c\u1eady, hi\u1ec7u n\u0103ng v\u00e0 hi\u1ec7u qu\u1ea3 c\u1ee7a \u0111i\u1ec7n tho\u1ea1i VoIP hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Kh\u00e1m ph\u00e1 to\u00e0n b\u1ed9 danh m\u1ee5c s\u1ea3n ph\u1ea9m c\u1ee7a LINK-PP g\u1ed3m <strong>b\u1ed9 k\u1ebft n\u1ed1i RJ45 c\u00f3 b\u1ed9 l\u1ecdc t\u1eeb t\u00ednh<\/strong> d\u00e0nh cho thi\u1ebft b\u1ecb VoIP v\u00e0 m\u1ea1ng t\u1ea1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\">www.l-p.com<\/a>.<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 \u0111i\u1ec7n tho\u1ea1i VoIP l\u00e0 g\u00ec, c\u00e1ch ch\u00fang ho\u1ea1t \u0111\u1ed9ng v\u00e0 l\u00fd do v\u00ec sao ch\u00fang quan tr\u1ecdng \u0111\u1ed1i v\u1edbi giao ti\u1ebfp hi\u1ec7n \u0111\u1ea1i. T\u00ecm hi\u1ec3u c\u00e1c l\u1ee3i \u00edch ch\u00ednh c\u0169ng nh\u01b0 c\u00e1ch \u0111\u1ea7u n\u1ed1i RJ45 c\u1ee7a LINK-PP h\u1ed7 tr\u1ee3 ch\u00fang.<\/p>","protected":false},"author":1,"featured_media":4702,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[22,24],"class_list":["post-4703","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-integrated-rj45-connectors","tag-link-pp"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=4703"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4703\/revisions"}],"predecessor-version":[{"id":11011,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4703\/revisions\/11011"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4702"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}