{"id":870,"date":"2020-05-08T09:07:08","date_gmt":"2020-05-08T09:07:08","guid":{"rendered":"https:\/\/lupine.me.uk\/?page_id=870"},"modified":"2026-07-30T03:43:13","modified_gmt":"2026-07-30T00:43:13","slug":"how-virtual-phone-numbers-work","status":"publish","type":"page","link":"https:\/\/telnum.net\/vi\/how-virtual-phone-numbers-work\/","title":{"rendered":"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o"},"content":{"rendered":"<p>S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o l\u00e0 m\u1ed9t s\u1ed1 \u0111i\u1ec7n tho\u1ea1i th\u1ef1c, c\u00f3 th\u1ec3 g\u1ecdi \u0111\u01b0\u1ee3c nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi m\u1ed9t th\u1ebb SIM, thi\u1ebft b\u1ecb c\u1ea7m tay ho\u1eb7c t\u00f2a nh\u00e0 c\u1ee5 th\u1ec3 n\u00e0o. N\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ea1ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 v\u00e0 b\u1ea1n quy\u1ebft \u0111\u1ecbnh cu\u1ed9c g\u1ecdi \u0111\u1ebfn s\u1ed1 \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn \u0111\u00e2u. Ch\u00ednh \u00fd t\u01b0\u1edfng \u0111\u00f3 \u0111\u00e3 gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1edf London trong khi \u0111ang \u1edf Warsaw, ho\u1eb7c v\u1eadn h\u00e0nh m\u1ed9t \u0111\u01b0\u1eddng d\u00e2y h\u1ed7 tr\u1ee3 duy nh\u1ea5t v\u1edbi \u0111\u1ed9i ng\u0169 nh\u00e2n vi\u00ean tr\u1ea3i r\u1ed9ng kh\u1eafp ba qu\u1ed1c gia.<\/p>\n<h2>S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n<p>B\u1ea1n kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c b\u1ea5t k\u1ef3 k\u1ebft n\u1ed1i v\u1eadt l\u00fd n\u00e0o. Khi ai \u0111\u00f3 g\u1ecdi \u0111\u1ebfn s\u1ed1 \u1ea3o c\u1ee7a b\u1ea1n, cu\u1ed9c g\u1ecdi s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn n\u1ec1n t\u1ea3ng c\u1ee7a nh\u00e0 cung c\u1ea5p, n\u01a1i s\u1ebd tra c\u1ee9u quy t\u1eafc \u0111\u1ecbnh tuy\u1ebfn m\u00e0 b\u1ea1n \u0111\u00e3 c\u1ea5u h\u00ecnh v\u00e0 chuy\u1ec3n ti\u1ebfp cu\u1ed9c g\u1ecdi \u0111\u1ebfn \u0111\u00edch m\u00e0 b\u1ea1n \u0111\u00e3 ch\u1ecdn. \u0110\u00edch \u0111\u1ebfn \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, \u0111i\u1ec7n tho\u1ea1i c\u1ed1 \u0111\u1ecbnh, \u1ee9ng d\u1ee5ng SIP tr\u00ean m\u00e1y t\u00ednh x\u00e1ch tay c\u1ee7a b\u1ea1n ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n tho\u1ea1i trong v\u0103n ph\u00f2ng.<\/p>\n<figure class=\"tn-fig\">\n<svg viewbox=\"0 0 900 250\" role=\"img\" aria-label=\"Khi ng\u01b0\u1eddi g\u1ecdi quay s\u1ed1 \u1ea3o c\u1ee7a b\u1ea1n, cu\u1ed9c g\u1ecdi \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u1ebfn m\u1ea1ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, v\u00e0 quy t\u1eafc \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n s\u1ebd chuy\u1ec3n ti\u1ebfp cu\u1ed9c g\u1ecdi \u0111\u1ebfn thi\u1ebft b\u1ecb di \u0111\u1ed9ng, \u1ee9ng d\u1ee5ng SIP ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n tho\u1ea1i v\u0103n ph\u00f2ng.\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:100%;height:auto;max-width:900px;display:block;margin:0 auto;font-family:system-ui,-apple-system,'Segoe UI',Roboto,sans-serif\">\n<defs><marker id=\"vnArr\" markerwidth=\"10\" markerheight=\"10\" refx=\"9\" refy=\"3\" orient=\"auto\"><path d=\"M0,0 L0,6 L9,3 z\" fill=\"#4f7fe8\"\/><\/marker><\/defs>\n<rect x=\"8\" y=\"90\" width=\"150\" height=\"66\" rx=\"14\" fill=\"#eef4ff\" stroke=\"#d5e2ff\"\/>\n<text x=\"83\" y=\"118\" text-anchor=\"middle\" font-size=\"20\" fill=\"#1e2b45\">&#128222;<\/text>\n<text x=\"83\" y=\"141\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"700\" fill=\"#3f6fd8\">Caller<\/text>\n<line x1=\"162\" y1=\"123\" x2=\"212\" y2=\"123\" stroke=\"#4f7fe8\" stroke-width=\"2.5\" marker-end=\"url(#vnArr)\"\/>\n<rect x=\"216\" y=\"82\" width=\"180\" height=\"82\" rx=\"14\" fill=\"#588af0\" stroke=\"#4f7fe8\"\/>\n<text x=\"306\" y=\"112\" text-anchor=\"middle\" font-size=\"15\" font-weight=\"800\" fill=\"#fff\">\u1ea2o c\u1ee7a b\u1ea1n<\/text>\n<text x=\"306\" y=\"133\" text-anchor=\"middle\" font-size=\"15\" font-weight=\"800\" fill=\"#fff\">number<\/text>\n<text x=\"306\" y=\"152\" text-anchor=\"middle\" font-size=\"11\" fill=\"#e9f0ff\">+44 20 \u00b7 +1 212 \u00b7 +49 30<\/text>\n<line x1=\"400\" y1=\"123\" x2=\"450\" y2=\"123\" stroke=\"#4f7fe8\" stroke-width=\"2.5\" marker-end=\"url(#vnArr)\"\/>\n<rect x=\"454\" y=\"82\" width=\"190\" height=\"82\" rx=\"14\" fill=\"#eef4ff\" stroke=\"#d5e2ff\"\/>\n<text x=\"549\" y=\"112\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"800\" fill=\"#3f6fd8\">Quy t\u1eafc \u0111\u1ecbnh tuy\u1ebfn<\/text>\n<text x=\"549\" y=\"134\" text-anchor=\"middle\" font-size=\"11\" fill=\"#48566e\">ng\u01b0\u1eddi tr\u1ea3 l\u1eddi,<\/text>\n<text x=\"549\" y=\"150\" text-anchor=\"middle\" font-size=\"11\" fill=\"#48566e\">and when<\/text>\n<line x1=\"648\" y1=\"123\" x2=\"694\" y2=\"58\" stroke=\"#4f7fe8\" stroke-width=\"2\" marker-end=\"url(#vnArr)\"\/>\n<line x1=\"648\" y1=\"123\" x2=\"694\" y2=\"123\" stroke=\"#4f7fe8\" stroke-width=\"2\" marker-end=\"url(#vnArr)\"\/>\n<line x1=\"648\" y1=\"123\" x2=\"694\" y2=\"188\" stroke=\"#4f7fe8\" stroke-width=\"2\" marker-end=\"url(#vnArr)\"\/>\n<rect x=\"698\" y=\"32\" width=\"194\" height=\"46\" rx=\"12\" fill=\"#fff\" stroke=\"#d5e2ff\"\/>\n<text x=\"795\" y=\"61\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"700\" fill=\"#1e2b45\">Di \u0111\u1ed9ng \/ \u0111i\u1ec7n tho\u1ea1i c\u1ed1 \u0111\u1ecbnh<\/text>\n<rect x=\"698\" y=\"100\" width=\"194\" height=\"46\" rx=\"12\" fill=\"#fff\" stroke=\"#d5e2ff\"\/>\n<text x=\"795\" y=\"129\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"700\" fill=\"#1e2b45\">SIP app<\/text>\n<rect x=\"698\" y=\"168\" width=\"194\" height=\"46\" rx=\"12\" fill=\"#fff\" stroke=\"#d5e2ff\"\/>\n<text x=\"795\" y=\"197\" text-anchor=\"middle\" font-size=\"13\" font-weight=\"700\" fill=\"#1e2b45\">Office PBX<\/text>\n<\/svg><br \/>\n<\/figure>\n<p>V\u00ec quy t\u1eafc n\u00e0y ch\u1ec9 l\u00e0 c\u1ea5u h\u00ecnh, b\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i b\u1ea5t c\u1ee9 khi n\u00e0o b\u1ea1n mu\u1ed1n. Cu\u1ed9c g\u1ecdi c\u00f3 th\u1ec3 \u0111\u1ed5 chu\u00f4ng \u1edf m\u1ed9t n\u01a1i trong gi\u1edd l\u00e0m vi\u1ec7c v\u00e0 \u1edf m\u1ed9t n\u01a1i kh\u00e1c v\u00e0o ban \u0111\u00eam, th\u1eed g\u1ecdi \u0111\u1ebfn \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng n\u1ebfu \u0111i\u1ec7n tho\u1ea1i b\u00e0n kh\u00f4ng tr\u1ea3 l\u1eddi, ho\u1eb7c chuy\u1ec3n \u0111\u1ebfn h\u1ed9p th\u01b0 tho\u1ea1i v\u00e0o cu\u1ed1i tu\u1ea7n. Ng\u01b0\u1eddi g\u1ecdi kh\u00f4ng bao gi\u1edd nh\u00ecn th\u1ea5y b\u1ea5t c\u1ee9 \u0111i\u1ec1u g\u00ec trong s\u1ed1 n\u00e0y: h\u1ecd quay s\u1ed1 b\u00ecnh th\u01b0\u1eddng \u1edf qu\u1ed1c gia c\u1ee7a m\u00ecnh v\u00e0 tr\u1ea3 c\u01b0\u1edbc ph\u00ed n\u1ed9i \u0111\u1ecba th\u00f4ng th\u01b0\u1eddng.<\/p>\n<h2>S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o so v\u1edbi th\u1ebb SIM<\/h2>\n<p>C\u00e1ch d\u1ec5 hi\u1ec3u nh\u1ea5t v\u1ec1 s\u1ed1 \u1ea3o l\u00e0 so s\u00e1nh n\u00f3 v\u1edbi th\u1ee9 m\u00e0 m\u1ecdi ng\u01b0\u1eddi \u0111\u00e3 bi\u1ebft.<\/p>\n<figure class=\"tn-cmp\">\n<table class=\"tn-cmp-table\">\n<thead>\n<tr>\n<th>&nbsp;<\/th>\n<th>S\u1ed1 th\u1ebb SIM<\/th>\n<th>S\u1ed1 \u1ea3o<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Tied to<\/td>\n<td>M\u1ed9t th\u1ebb v\u1eadt l\u00fd trong m\u1ed9t thi\u1ebft b\u1ecb.<\/td>\n<td>\u0110\u00e2y l\u00e0 t\u00e0i kho\u1ea3n, kh\u00f4ng ph\u1ea3i thi\u1ebft b\u1ecb.<\/td>\n<\/tr>\n<tr>\n<td>N\u01a1i b\u1ea1n ph\u1ea3i \u0111\u1ebfn<\/td>\n<td>Trong khu v\u1ef1c ph\u1ee7 s\u00f3ng c\u1ee7a m\u1ea1ng<\/td>\n<td>B\u1ea5t c\u1ee9 n\u01a1i n\u00e0o c\u00f3 k\u1ebft n\u1ed1i internet ho\u1eb7c \u0111i\u1ec3m chuy\u1ec3n ti\u1ebfp<\/td>\n<\/tr>\n<tr>\n<td>Qu\u1ed1c gia c\u1ee7a s\u1ed1<\/td>\n<td>B\u1ea1n mua SIM \u1edf \u0111\u00e2u?<\/td>\n<td>B\u1ea5t k\u1ef3 qu\u1ed1c gia n\u00e0o m\u00e0 nh\u00e0 cung c\u1ea5p n\u00e0y ph\u1ee5c v\u1ee5<\/td>\n<\/tr>\n<tr>\n<td>Ai c\u00f3 th\u1ec3 tr\u1ea3 l\u1eddi?<\/td>\n<td>Ng\u01b0\u1eddi n\u00e0o \u0111ang c\u1ea7m \u0111i\u1ec7n tho\u1ea1i<\/td>\n<td>B\u1ea5t k\u1ef3 \u0111\u1ed3ng \u0111\u1ed9i n\u00e0o b\u1ea1n chuy\u1ec3n h\u01b0\u1edbng cu\u1ed9c g\u1ecdi \u0111\u1ebfn<\/td>\n<\/tr>\n<tr>\n<td>Thay \u0111\u1ed5i \u0111i\u1ec3m \u0111\u1ebfn<\/td>\n<td>\u0110\u1ed5i th\u1ebb ho\u1eb7c thi\u1ebft b\u1ecb<\/td>\n<td>Ch\u1ec9nh s\u1eeda c\u00e0i \u0111\u1eb7t<\/td>\n<\/tr>\n<tr>\n<td>Nhi\u1ec1u con s\u1ed1 c\u00f9ng m\u1ed9t l\u00fac<\/td>\n<td>M\u1ed9t chi\u1ebfc cho m\u1ed7i v\u1ecb tr\u00ed<\/td>\n<td>Bao nhi\u00eau t\u00f9y th\u00edch, t\u1ea5t c\u1ea3 \u0111\u1ec1u \u1edf c\u00f9ng m\u1ed9t ch\u1ed7.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<h2>C\u00f3 nh\u1eefng lo\u1ea1i s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o n\u00e0o?<\/h2>\n<p>Kh\u00f4ng ph\u1ea3i m\u1ecdi s\u1ed1 \u1ea3o \u0111\u1ec1u c\u00f3 c\u00f9ng ch\u1ee9c n\u0103ng, v\u00e0 vi\u1ec7c ch\u1ecdn sai lo\u1ea1i l\u00e0 l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u1ea5t. Nh\u00ecn chung c\u00f3 b\u1ed1n lo\u1ea1i:<\/p>\n<ul>\n<li><strong>S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng<\/strong> Mang m\u00e3 v\u00f9ng c\u1ee7a m\u1ed9t th\u00e0nh ph\u1ed1 ho\u1eb7c qu\u1ed1c gia c\u1ee5 th\u1ec3 v\u00e0 l\u00e0 th\u1ee9 b\u1ea1n c\u1ea7n \u0111\u1ec3 c\u00f3 s\u1ef1 hi\u1ec7n di\u1ec7n t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng trong m\u1ed9t th\u1ecb tr\u01b0\u1eddng. Ch\u00fang c\u0169ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a href=\"https:\/\/telnum.net\/vi\/services\/voip-local-phone-numbers\/\">DID numbers<\/a>.<\/li>\n<li><strong><a href=\"https:\/\/telnum.net\/vi\/services\/so-toll-free\/\">S\u1ed1 \u0111i\u1ec7n tho\u1ea1i mi\u1ec5n ph\u00ed<\/a><\/strong> C\u00e1c cu\u1ed9c g\u1ecdi n\u00e0y mi\u1ec5n ph\u00ed cho ng\u01b0\u1eddi g\u1ecdi v\u00e0 do b\u1ea1n thanh to\u00e1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u0111\u01b0\u1eddng d\u00e2y d\u1ecbch v\u1ee5 kh\u00e1ch h\u00e0ng tr\u00ean to\u00e0n qu\u1ed1c.<\/li>\n<li><strong><a href=\"https:\/\/telnum.net\/vi\/services\/so-sms\/\">s\u1ed1 tin nh\u1eafn SMS<\/a><\/strong> Nh\u1eadn tin nh\u1eafn v\u0103n b\u1ea3n thay v\u00ec cu\u1ed9c g\u1ecdi, \u0111i\u1ec1u m\u00e0 h\u1ea7u h\u1ebft c\u00e1c quy tr\u00ecnh \u0111\u0103ng k\u00fd v\u00e0 x\u00e1c minh \u0111\u1ec1u c\u1ea7n.<\/li>\n<li><strong><a href=\"https:\/\/telnum.net\/vi\/services\/disposable-number\/\">S\u1ed1 d\u00f9ng m\u1ed9t l\u1ea7n<\/a><\/strong> Ch\u00fang ch\u1ec9 t\u1ed3n t\u1ea1i cho m\u1ed9t m\u00e3 d\u00f9ng m\u1ed9t l\u1ea7n duy nh\u1ea5t v\u00e0 sau \u0111\u00f3 b\u1ecb lo\u1ea1i b\u1ecf, v\u00ec v\u1eady ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m s\u1ed1 li\u00ean l\u1ea1c.<\/li>\n<\/ul>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n m\u1ed9t s\u1ed1 \u0111i\u1ec7n tho\u1ea1i g\u1eafn b\u00f3 v\u1edbi doanh nghi\u1ec7p c\u1ee7a m\u00ecnh trong nhi\u1ec1u n\u0103m, thay v\u00ec s\u1ed1 c\u00f3 th\u1eddi h\u1ea1n, th\u00ec \u0111\u00f3 l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn t\u1ed1t. <a href=\"https:\/\/telnum.net\/vi\/services\/permanent-virtual-number\/\">permanent virtual number<\/a>.<\/p>\n<p>T\u1ea1i telnum.net ch\u00fang t\u00f4i \u0111ang cung c\u1ea5p <a href=\"https:\/\/telnum.net\/vi\/\">s\u1ed1 \u1ea3o<\/a> bao g\u1ed3m c\u00e1c k\u00eanh \u0111a ph\u01b0\u01a1ng th\u1ee9c (n\u1ebfu c\u00f3 th\u1ec3), s\u1ed1 \u0111i\u1ec7n tho\u1ea1i mi\u1ec5n ph\u00ed v\u00e0 s\u1ed1 SMS \u1ea3o. T\u1ed5ng \u0111\u00e0i \u1ea3o (Virtual PBX) c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n k\u1ebft h\u1ee3p m\u1ed9t s\u1ed1 d\u1ecbch v\u1ee5 n\u00e0y th\u00e0nh m\u1ed9t, m\u1eb7c d\u00f9 b\u1ea1n s\u1ebd c\u1ea7n m\u1ed9t... <a href=\"https:\/\/telnum.net\/vi\/countries\/\">s\u1ed1 \u0111\u1ecba ph\u01b0\u01a1ng \u1ea3o<\/a> H\u1ea7u h\u1ebft th\u1eddi gian l\u00e0 v\u1eady. B\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn n\u01a1i b\u1ea1n mu\u1ed1n cu\u1ed9c g\u1ecdi c\u1ee7a m\u00ecnh \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp. Vi\u1ec7c n\u00e0y c\u00f3 th\u1ec3 ho\u00e0n to\u00e0n mi\u1ec5n ph\u00ed n\u1ebfu b\u1ea1n ch\u1ecdn SiP. Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00e1c, b\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra chi ph\u00ed tr\u00ean trang web c\u1ee7a ch\u00fang t\u00f4i trong m\u1ee5c \"chi ph\u00ed chuy\u1ec3n ti\u1ebfp\".<\/p>\n<h2>B\u1ea1n c\u1ea7n nh\u1eefng g\u00ec \u0111\u1ec3 s\u1eed d\u1ee5ng n\u00f3?<\/h2>\n<p>\u00cdt ph\u1ee9c t\u1ea1p h\u01a1n h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi ngh\u0129. B\u1ea1n c\u1ea7n m\u1ed9t n\u01a1i \u0111\u1ec3 nh\u1eadn cu\u1ed9c g\u1ecdi, \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n l\u00e0 s\u1ed1 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng hi\u1ec7n c\u00f3 c\u1ee7a b\u1ea1n, v\u00e0 \u1edf m\u1ed9t s\u1ed1 qu\u1ed1c gia, b\u1ea1n c\u1ea7n c\u00e1c t\u00e0i li\u1ec7u x\u00e1c nh\u1eadn \u0111\u1ecba ch\u1ec9 c\u1ee7a doanh nghi\u1ec7p ho\u1eb7c ng\u01b0\u1eddi \u0111\u1ea1i di\u1ec7n tr\u01b0\u1edbc khi s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. C\u00e1c y\u00eau c\u1ea7u kh\u00e1c nhau t\u00f9y theo qu\u1ed1c gia v\u00e0 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb tr\u00ean trang th\u00f4ng tin c\u1ee7a t\u1eebng qu\u1ed1c gia tr\u01b0\u1edbc khi b\u1ea1n \u0111\u1eb7t h\u00e0ng.<\/p>\n<h2>L\u1ef1a ch\u1ecdn n\u01a1i cu\u1ed9c g\u1ecdi \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn<\/h2>\n<p>S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng \u1ea3o v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u01b0 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i c\u1ed1 \u0111\u1ecbnh. Tuy nhi\u00ean, xu h\u01b0\u1edbng g\u1ea7n \u0111\u00e2y trong n\u1ec1n kinh t\u1ebf to\u00e0n c\u1ea7u \u0111ang khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi ngh\u0129 \u0111\u1ebfn vi\u1ec7c m\u1edf r\u1ed9ng kinh doanh v\u00e0 chuy\u1ec3n \u0111\u1ebfn c\u00e1c qu\u1ed1c gia kh\u00e1c \u0111\u1ec3 t\u00ecm ki\u1ebfm cu\u1ed9c s\u1ed1ng r\u1ebb h\u01a1n. \u00dd t\u01b0\u1edfng \u0111\u1eb1ng sau s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng \u1ea3o l\u00e0 mua m\u1ed9t s\u1ed1 \u0111i\u1ec7n tho\u1ea1i c\u1ed1 \u0111\u1ecbnh \u1edf qu\u1ed1c gia m\u00e0 b\u1ea1n d\u1ef1 \u0111\u1ecbnh nh\u1eadn ph\u1ea7n l\u1edbn cu\u1ed9c g\u1ecdi v\u00e0 chuy\u1ec3n ti\u1ebfp cu\u1ed9c g\u1ecdi \u0111\u00f3 \u0111\u1ebfn n\u01a1i b\u1ea1n d\u1ef1 \u0111\u1ecbnh sinh s\u1ed1ng ph\u1ea7n l\u1edbn th\u1eddi gian. \u0110i\u1ec1u n\u00e0y s\u1ebd cho ph\u00e9p nh\u1eefng ng\u01b0\u1eddi mu\u1ed1n li\u00ean l\u1ea1c v\u1edbi b\u1ea1n c\u00f3 th\u1ec3 g\u1ecdi \u0111i\u1ec7n v\u1edbi m\u1ee9c ph\u00ed \u0111\u1ecba ph\u01b0\u01a1ng. B\u00ean c\u1ea1nh \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecdn n\u01a1i chuy\u1ec3n h\u01b0\u1edbng c\u00e1c cu\u1ed9c g\u1ecdi \u0111\u1ebfn. \u0110\u00f3 c\u00f3 th\u1ec3 l\u00e0 VoIP, s\u1ed1 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng, ho\u1eb7c th\u1eadm ch\u00ed l\u00e0... <a href=\"https:\/\/telnum.net\/vi\/services\/so-toll-free\/\">s\u1ed1 \u0111i\u1ec7n tho\u1ea1i mi\u1ec5n ph\u00ed<\/a>.<\/p>\n<p>Kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 ch\u1ecdn ch\u1ebf \u0111\u1ed9 chuy\u1ec3n ti\u1ebfp cu\u1ed9c g\u1ecdi ph\u1ee9c t\u1ea1p; trong tr\u01b0\u1eddng h\u1ee3p m\u1ed9t trong c\u00e1c \u0111\u01b0\u1eddng d\u00e2y c\u1ee7a h\u1ecd b\u1eadn, h\u1ecd v\u1eabn s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c cu\u1ed9c g\u1ecdi \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn s\u1ed1 \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng. Telnum cung c\u1ea5p d\u1ecbch v\u1ee5 n\u00e0y nh\u01b0 sau: <a href=\"https:\/\/telnum.net\/vi\/services\/call-forwarding\/\">Chuy\u1ec3n ti\u1ebfp cu\u1ed9c g\u1ecdi \u0111\u1ebfn b\u1ea5t k\u1ef3 \u0111i\u1ec3m \u0111\u1ebfn n\u00e0o<\/a>v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 th\u00eam m\u1ed9t <a href=\"https:\/\/telnum.net\/vi\/services\/ivr\/\">Menu tho\u1ea1i IVR<\/a> Nh\u01b0 v\u1eady, ng\u01b0\u1eddi g\u1ecdi s\u1ebd t\u1ef1 \u0111\u1ed9ng li\u00ean h\u1ec7 \u0111\u01b0\u1ee3c v\u1edbi b\u1ed9 ph\u1eadn ph\u00f9 h\u1ee3p.<\/p>\n<h2>D\u1ecbch v\u1ee5 \u0111i\u1ec7n tho\u1ea1i \u1ea3o b\u1ed5 sung<\/h2>\n<p>T\u1ea1i Telnum, ch\u00fang t\u00f4i cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111i\u1ec7n tho\u1ea1i \u1ea3o tr\u1ecdn g\u00f3i v\u1edbi gi\u00e1 65 \u0111\u00f4 la m\u1ed7i th\u00e1ng. G\u00f3i d\u1ecbch v\u1ee5 n\u00e0y bao g\u1ed3m t\u1ea5t c\u1ea3 c\u00e1c d\u1ecbch v\u1ee5 vi\u1ec5n th\u00f4ng c\u1ea7n thi\u1ebft, v\u00e0 vi\u1ec7c \u0111\u0103ng k\u00fd tr\u1ecdn g\u00f3i s\u1ebd ti\u1ebft ki\u1ec7m h\u01a1n so v\u1edbi vi\u1ec7c tr\u1ea3 ti\u1ec1n cho t\u1eebng d\u1ecbch v\u1ee5 ri\u00eang l\u1ebb. <a href=\"https:\/\/telnum.net\/vi\/services\/virtual-office-phone-services\/\">d\u1ecbch v\u1ee5 \u0111i\u1ec7n tho\u1ea1i v\u0103n ph\u00f2ng \u1ea3o<\/a> Ph\u1ea7n m\u1ec1m n\u00e0y s\u1ebd bi\u1ebfn v\u0103n ph\u00f2ng c\u1ee7a b\u1ea1n th\u00e0nh m\u1ed9t \u0111\u01a1n v\u1ecb kinh doanh chuy\u00ean nghi\u1ec7p v\u1edbi \u0111\u1ea7y \u0111\u1ee7 kh\u1ea3 n\u0103ng tr\u1ea3 l\u1eddi v\u00e0 chuy\u1ec3n ti\u1ebfp cu\u1ed9c g\u1ecdi. Nh\u1edd \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c t\u1ea5t c\u1ea3 c\u00e1c cu\u1ed9c g\u1ecdi ngay c\u1ea3 khi kh\u00f4ng c\u00f3 m\u1eb7t. \u0110i\u1ec1u tuy\u1ec7t v\u1eddi nh\u1ea5t l\u00e0 gi\u00e1 ch\u1ec9 65 \u0111\u00f4 la m\u1ed9t th\u00e1ng v\u00e0 kh\u00f4ng c\u1ea7n th\u01b0 k\u00fd hay b\u1ea5t k\u1ef3 nh\u00e2n vi\u00ean h\u1ed7 tr\u1ee3 n\u00e0o kh\u00e1c.<\/p>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n b\u1ed5 sung th\u00eam c\u00e1c ch\u1ee9c n\u0103ng cho s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o c\u1ee7a m\u00ecnh, b\u1ea1n c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn g\u00f3i v\u0103n ph\u00f2ng \u1ea3o v\u1edbi gi\u00e1 65 \u0111\u00f4 la m\u1ed7i th\u00e1ng. G\u00f3i n\u00e0y s\u1ebd b\u1ed5 sung c\u00e1c t\u00f9y ch\u1ecdn nh\u01b0 danh s\u00e1ch \u0111en\/tr\u1eafng, m\u1edf r\u1ed9ng nhi\u1ec1u \u0111\u01b0\u1eddng d\u00e2y, h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn v\u00e0 nhi\u1ec1u ch\u1ee9c n\u0103ng kh\u00e1c. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 \u0111\u1eb7t mua ri\u00eang l\u1ebb m\u1ed9t ho\u1eb7c nhi\u1ec1u d\u1ecbch v\u1ee5 b\u1ed5 sung.<\/p>\n<h2>B\u1ea1n c\u00f3 th\u1ec3 l\u1ea5y s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o \u1edf \u0111\u00e2u?<\/h2>\n<p>Telnum cung c\u1ea5p d\u1ecbch v\u1ee5 <a href=\"https:\/\/telnum.net\/vi\/countries\/\">h\u01a1n 90 qu\u1ed1c gia v\u00e0 6500 th\u00e0nh ph\u1ed1<\/a>C\u00e1c th\u1ecb tr\u01b0\u1eddng nh\u1ed9n nh\u1ecbp nh\u1ea5t trong s\u1ed1 kh\u00e1ch h\u00e0ng c\u1ee7a ch\u00fang t\u00f4i l\u00e0 <a href=\"https:\/\/telnum.net\/vi\/countries\/usa\/\">Hoa K\u1ef3<\/a>, <a href=\"https:\/\/telnum.net\/vi\/countries\/china\/\">Trung Qu\u1ed1c<\/a>, <a href=\"https:\/\/telnum.net\/vi\/countries\/turkey\/\">Th\u1ed5 Nh\u0129 K\u1ef3<\/a>, <a href=\"https:\/\/telnum.net\/vi\/countries\/germany\/\">n\u01b0\u1edbc \u0110\u1ee9c<\/a>, <a href=\"https:\/\/telnum.net\/vi\/countries\/india\/\">\u1ea4n \u0110\u1ed9<\/a> V\u00e0 <a href=\"https:\/\/telnum.net\/vi\/countries\/singapore\/\">Singapore<\/a>M\u1ed7i trang qu\u1ed1c gia li\u1ec7t k\u00ea c\u00e1c th\u00e0nh ph\u1ed1 c\u00f3 s\u1eb5n, gi\u00e1 c\u1ea3 v\u00e0 b\u1ea5t k\u1ef3 gi\u1ea5y t\u1edd n\u00e0o c\u1ea7n thi\u1ebft tr\u01b0\u1edbc khi k\u00edch ho\u1ea1t.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>T\u00f4i c\u00f3 c\u1ea7n internet \u0111\u1ec3 s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng?<\/h3>\n<p>Ch\u1ec9 khi b\u1ea1n mu\u1ed1n cu\u1ed9c g\u1ecdi \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn m\u1ed9t \u1ee9ng d\u1ee5ng. N\u1ebfu b\u1ea1n chuy\u1ec3n ti\u1ebfp s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u1ebfn m\u1ed9t \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng ho\u1eb7c \u0111i\u1ec7n tho\u1ea1i c\u1ed1 \u0111\u1ecbnh th\u00f4ng th\u01b0\u1eddng, cu\u1ed9c g\u1ecdi s\u1ebd \u0111\u1ebfn qua m\u1ea1ng \u0111i\u1ec7n tho\u1ea1i th\u00f4ng th\u01b0\u1eddng v\u00e0 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n internet \u1edf ph\u00eda b\u1ea1n.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 gi\u1eef nguy\u00ean s\u1ed1 \u0111i\u1ec7n tho\u1ea1i n\u00e0y n\u1ebfu chuy\u1ec3n \u0111\u1ebfn s\u1ed1ng \u1edf n\u01b0\u1edbc kh\u00e1c kh\u00f4ng?<\/h3>\n<p>\u0110\u00fang v\u1eady. S\u1ed1 \u0111i\u1ec7n tho\u1ea1i s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u gi\u1eef trong t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n b\u1ea5t k\u1ec3 b\u1ea1n \u1edf \u0111\u00e2u, \u0111\u00f3 l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do ch\u00ednh khi\u1ebfn m\u1ecdi ng\u01b0\u1eddi l\u1ef1a ch\u1ecdn d\u1ecbch v\u1ee5 n\u00e0y. B\u1ea1n ch\u1ec9 c\u1ea7n thay \u0111\u1ed5i \u0111i\u1ec3m \u0111\u1ebfn m\u00e0 cu\u1ed9c g\u1ecdi chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn.<\/p>\n<h3>Ng\u01b0\u1eddi g\u1ecdi c\u00f3 bi\u1ebft \u0111\u00f3 l\u00e0 s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o kh\u00f4ng?<\/h3>\n<p>Kh\u00f4ng. S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u0111\u00f3 tr\u00f4ng v\u00e0 ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng nh\u01b0 b\u1ea5t k\u1ef3 s\u1ed1 \u0111i\u1ec7n tho\u1ea1i n\u00e0o kh\u00e1c \u1edf qu\u1ed1c gia \u0111\u00f3, v\u00e0 ng\u01b0\u1eddi g\u1ecdi s\u1ebd tr\u1ea3 c\u01b0\u1edbc ph\u00ed n\u1ed9i \u0111\u1ecba th\u00f4ng th\u01b0\u1eddng khi g\u1ecdi \u0111\u1ebfn s\u1ed1 \u0111\u00f3.<\/p>\n<h3>T\u00f4i c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n cu\u1ed9c g\u1ecdi \u0111i m\u00e0 kh\u00f4ng ch\u1ec9 nh\u1eadn cu\u1ed9c g\u1ecdi kh\u00f4ng?<\/h3>\n<p>C\u00f3, v\u1edbi t\u00e0i kho\u1ea3n SIP \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t tr\u00ean s\u1ed1 \u0111i\u1ec7n tho\u1ea1i c\u1ee7a b\u1ea1n, b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o c\u1ee7a m\u00ecnh l\u00e0m ID ng\u01b0\u1eddi g\u1ecdi. Cu\u1ed9c g\u1ecdi \u0111i \u0111\u01b0\u1ee3c t\u00ednh ph\u00ed ri\u00eang bi\u1ec7t v\u1edbi ph\u00ed thu\u00ea s\u1ed1 \u0111i\u1ec7n tho\u1ea1i; hi\u1ec7n t\u1ea1i <a href=\"https:\/\/telnum.net\/vi\/voip-call-rates\/\">call rates<\/a> \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea tr\u00ean trang web.<\/p>\n<h3>S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o c\u00f3 gi\u1ed1ng v\u1edbi s\u1ed1 \u0111i\u1ec7n tho\u1ea1i VoIP kh\u00f4ng?<\/h3>\n<p>Ch\u00fang c\u00f3 s\u1ef1 ch\u1ed3ng ch\u00e9o nh\u01b0ng kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau. VoIP m\u00f4 t\u1ea3 c\u00f4ng ngh\u1ec7 truy\u1ec1n cu\u1ed9c g\u1ecdi qua internet. \u1ea2o m\u00f4 t\u1ea3 vi\u1ec7c s\u1ed1 \u0111i\u1ec7n tho\u1ea1i kh\u00f4ng b\u1ecb r\u00e0ng bu\u1ed9c v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng d\u00e2y v\u1eadt l\u00fd. H\u1ea7u h\u1ebft c\u00e1c s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o \u0111\u1ec1u s\u1eed d\u1ee5ng VoIP \u1edf m\u1ed9t s\u1ed1 kh\u00e2u n\u00e0o \u0111\u00f3, nh\u01b0ng m\u1ed9t s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng s\u1ebd ho\u00e0n t\u1ea5t h\u00e0nh tr\u00ecnh tr\u00ean m\u1ea1ng \u0111i\u1ec7n tho\u1ea1i th\u00f4ng th\u01b0\u1eddng.<\/p>","protected":false},"excerpt":{"rendered":"<p>A virtual phone number is a real, dialable number that is not wired to a specific SIM card, handset, or building. It lives in your provider&#8217;s network, and you decide where calls to it should land. That single idea is what makes it possible to hold a London number while sitting in Warsaw, or to &hellip; <\/p>","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-870","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How do virtual phone numbers work?<\/title>\n<meta name=\"description\" content=\"A virtual phone number is not tied to a SIM or a building. How calls reach you, how it differs from a SIM card, which types exist, and what you need to start using one.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/telnum.net\/vi\/how-virtual-phone-numbers-work\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How do virtual phone numbers work?\" \/>\n<meta property=\"og:description\" content=\"A virtual phone number is not tied to a SIM or a building. How calls reach you, how it differs from a SIM card, which types exist, and what you need to start using one.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/telnum.net\/vi\/how-virtual-phone-numbers-work\/\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/telnum.net\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-30T00:43:13+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@TelnumCompany\" \/>\n<meta name=\"twitter:label1\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/\",\"url\":\"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/\",\"name\":\"How do virtual phone numbers work?\",\"isPartOf\":{\"@id\":\"https:\/\/telnum.net\/#website\"},\"datePublished\":\"2020-05-08T09:07:08+00:00\",\"dateModified\":\"2026-07-30T00:43:13+00:00\",\"description\":\"A virtual phone number is not tied to a SIM or a building. How calls reach you, how it differs from a SIM card, which types exist, and what you need to start using one.\",\"breadcrumb\":{\"@id\":\"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/#breadcrumb\"},\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u0413\u043b\u0430\u0432\u043d\u0430\u044f \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430\",\"item\":\"https:\/\/telnum.net\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How virtual phone numbers work\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/telnum.net\/#website\",\"url\":\"https:\/\/telnum.net\/\",\"name\":\"\",\"description\":\" &#x1f1fa;&#x1f1e6; Virtual Phone Numbers\",\"publisher\":{\"@id\":\"https:\/\/telnum.net\/#organization\"},\"inLanguage\":\"vi\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/telnum.net\/#organization\",\"name\":\"Telnum.net\",\"url\":\"https:\/\/telnum.net\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"vi\",\"@id\":\"https:\/\/telnum.net\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/telnum.net\/wp-content\/uploads\/2022\/03\/logo-telnum-2.png\",\"contentUrl\":\"https:\/\/telnum.net\/wp-content\/uploads\/2022\/03\/logo-telnum-2.png\",\"width\":725,\"height\":138,\"caption\":\"Telnum.net\"},\"image\":{\"@id\":\"https:\/\/telnum.net\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/telnum.net\/\",\"https:\/\/x.com\/TelnumCompany\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?","description":"S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o kh\u00f4ng g\u1eafn li\u1ec1n v\u1edbi th\u1ebb SIM hay t\u00f2a nh\u00e0 c\u1ee5 th\u1ec3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch c\u00e1ch cu\u1ed9c g\u1ecdi \u0111\u1ebfn v\u1edbi b\u1ea1n, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o v\u00e0 th\u1ebb SIM, c\u00e1c lo\u1ea1i s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o hi\u1ec7n c\u00f3 v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1eaft \u0111\u1ea7u s\u1eed d\u1ee5ng.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/telnum.net\/vi\/how-virtual-phone-numbers-work\/","og_locale":"vi_VN","og_type":"article","og_title":"How do virtual phone numbers work?","og_description":"A virtual phone number is not tied to a SIM or a building. How calls reach you, how it differs from a SIM card, which types exist, and what you need to start using one.","og_url":"https:\/\/telnum.net\/vi\/how-virtual-phone-numbers-work\/","article_publisher":"https:\/\/www.facebook.com\/telnum.net\/","article_modified_time":"2026-07-30T00:43:13+00:00","twitter_card":"summary_large_image","twitter_site":"@TelnumCompany","twitter_misc":{"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"3 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/","url":"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/","name":"S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?","isPartOf":{"@id":"https:\/\/telnum.net\/#website"},"datePublished":"2020-05-08T09:07:08+00:00","dateModified":"2026-07-30T00:43:13+00:00","description":"S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o kh\u00f4ng g\u1eafn li\u1ec1n v\u1edbi th\u1ebb SIM hay t\u00f2a nh\u00e0 c\u1ee5 th\u1ec3. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch c\u00e1ch cu\u1ed9c g\u1ecdi \u0111\u1ebfn v\u1edbi b\u1ea1n, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o v\u00e0 th\u1ebb SIM, c\u00e1c lo\u1ea1i s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o hi\u1ec7n c\u00f3 v\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1eaft \u0111\u1ea7u s\u1eed d\u1ee5ng.","breadcrumb":{"@id":"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/#breadcrumb"},"inLanguage":"vi","potentialAction":[{"@type":"ReadAction","target":["https:\/\/telnum.net\/how-virtual-phone-numbers-work\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/telnum.net\/how-virtual-phone-numbers-work\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u0413\u043b\u0430\u0432\u043d\u0430\u044f \u0441\u0442\u0440\u0430\u043d\u0438\u0446\u0430","item":"https:\/\/telnum.net\/"},{"@type":"ListItem","position":2,"name":"How virtual phone numbers work"}]},{"@type":"WebSite","@id":"https:\/\/telnum.net\/#website","url":"https:\/\/telnum.net\/","name":"","description":"\ud83c\uddfa\ud83c\udde6 S\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o","publisher":{"@id":"https:\/\/telnum.net\/#organization"},"inLanguage":"vi"},{"@type":"Organization","@id":"https:\/\/telnum.net\/#organization","name":"Telnum.net","url":"https:\/\/telnum.net\/","logo":{"@type":"ImageObject","inLanguage":"vi","@id":"https:\/\/telnum.net\/#\/schema\/logo\/image\/","url":"https:\/\/telnum.net\/wp-content\/uploads\/2022\/03\/logo-telnum-2.png","contentUrl":"https:\/\/telnum.net\/wp-content\/uploads\/2022\/03\/logo-telnum-2.png","width":725,"height":138,"caption":"Telnum.net"},"image":{"@id":"https:\/\/telnum.net\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/telnum.net\/","https:\/\/x.com\/TelnumCompany"]}]}},"_links":{"self":[{"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/pages\/870"}],"collection":[{"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/comments?post=870"}],"version-history":[{"count":11,"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/pages\/870\/revisions"}],"predecessor-version":[{"id":5606,"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/pages\/870\/revisions\/5606"}],"wp:attachment":[{"href":"https:\/\/telnum.net\/vi\/wp-json\/wp\/v2\/media?parent=870"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}